###### Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days
8104911739
For Business Enquiry

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

Ask Gas Laws question free ×

Queries asked on Sunday and after 7 pm from Monday to Saturday will be answered after 12 pm the next working day.

• ICSE×
• Class 9×
• Chemistry×
• Study Of Gas Laws×
• Gas Laws×

# Gas Laws Free Doubts and Solutions

## Two organic compounds X and Y contain carbon and hydrogen ONLY and have vapour density 13 and 39 respectively.Calculate the molecular formula of X and Y

Asked by pb_ckt 20th March 2019, 2:43 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## Please solve these numerical by boyle's and charle's law 1.A gas occupies 3 litres at 0°C. What volume will it occupy at -20°C, pressure remains constant? (Ans.2.78 litres) 2.870 cc of moist hydrogen measured at 9°C and 659 mm pressure. Find the volume of dry hydrogen at N.T.P. The vapour pressure of water at 9°C is 9 mm.(ans.715.9 cc) 3. A sample of carbon dioxide occupies 30 cm3 at 15°C and 740 mm pressure. Find its volume at S.T.P.(ans. 27.7 cc) 4. A gas occupies a volume of 1000 cc at 0°C and 760 mm pressure.  Find the volume of gas if temperature of the gas is increased by one fifth and its pressure is increased one and half times.(ans.800 cc) 5. A fixed volume of a gas occupies 380 cc at 27°C and 70 cm of mercury. What is its volume at S.T.P.(ans.318.5 cc) 6. The pressure of a gas at S.T.P. is doulbed and the temperature is raised to 273°C. What is the final volume of the gas.  7. One litre of a gas weighs 1.33g at 750 mm of mercury and 77°C. Calculate the weight of 500 ml of the gas at 37°C and 640 mm hg.(ans.0.640 g)  8. At 0°C and 760mm hg pressure  , a gas occupies a volume of 100 cm3. The kelvin temperature of the gas increased by one-fifth while the pressure is increased one and half times. Calculate the final volume of the gas. (Ans. 80 cc)

Asked by Sl9380 1st February 2019, 2:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## A moist gas is stored in a container of volume 870cc temperature 9°C and pressure of 659 mm Hg . Calculate its final volume at S.T.P. . Given vapour pressure at 9°C is 9 mm Hg.

Asked by dp8067624 1st February 2019, 11:05 AM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## What will be the volume of a gas when 3 litres of it is cooled down from 15 degree Celsius to -73 degree Celsius at constant pressure .

Asked by sadiyafathima286 16th January 2019, 6:45 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## A gas 'X' is collected over warer at 17°C and 750mm pressure. If the volume of the gas collected is 50cc., calculate the volume of the dry gas at s.t.p.[at 17°C the vapour pressure is 14mm].

Asked by Karuna 28th December 2018, 12:16 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## A gas cylinder having a capacity of 20 litres contains  a gas at 100 atoms .How many flasks of 200 cm^3 capacity can be filled from it at 1 atoms.pressure if the temperature remains constant ?                                              Ans[10,000]

Asked by aadrica.kanika 27th December 2018, 12:37 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## What temperature would be necessary to double the volume of a gas initially at s.t.p. if the pressure is decreased by 50% ?                                 Ans [0℃]

Asked by aadrica.kanika 27th December 2018, 12:27 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## A fixed mass of a gas has a volume of 750 cc at -23℃ and 800 mm pressure .Calculate the pressure for which its volume will be 720 cc .The temperature being -3℃ .                         Ans [900 mm]

Asked by aadrica.kanika 27th December 2018, 12:22 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## The volume of a given mass of a gas at 27℃ is 100 cc .To what temperature should it be heated at the same pressure so that it will occupy a volume of 150 cc ?                                  Ans [177℃]

Asked by aadrica.kanika 27th December 2018, 12:17 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## What volume will a gas occupy at 740 mm pressure which at 1480 mm occupies 500 cc ? [ Temperature being constant ]                                   Ans [ 1000 cc]

Asked by aadrica.kanika 27th December 2018, 12:12 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## What is meant by Boyle's law and Charles law

Asked by joshyabraham1965 14th December 2018, 8:49 AM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## At what temperature in degree centigrade will the volume of gas at 0 degree Celsius double itself.pressure remaining constant

Asked by Sheikanees02 1st November 2018, 8:25 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## Two cylinder both containing carbon dioxide are connected together by a tube fitted with tap. The capacity of one cylinder is 4dm^3 and that of other 1dm^3 the pressure in one cylinder is 560mm Hg and that is second cylinder is 1000mm Hg which is the final pressure in both cylinders On opening the tap of temperature is constant?

Asked by olivegreen1327 25th October 2018, 6:57 AM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## a gas occupies a volume of 400cm cube. On heating to 127 degree Celsius it's it's volume becomes 1600cm cube. Find the initial temperature of gas on Celsius scale . assume pressure remains constant.

Asked by joachimdungdung 21st October 2018, 7:53 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## Calculate the volume of dry air at S.T.P. that occupies 28cm3 at 14 degree Celsius and 750 mm Hg pressure when saturated with water vapour.The vapour pressure of water at 14 degree Celsius is 12 mm Hg.

Asked by pradeepkumarsamal 30th August 2018, 9:43 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## a balloon speed with hydrogen at room temperature it will burnt if pressure exceed 0.2bar if at 1bar pressure the gas occupies 2.17 volume upto.what wil the volume of balloon be expanded?

Asked by indudhiman05 27th August 2018, 9:19 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## America's based on Boyle's law the volume of a given mass of a gas at 15 degrees celsius is 100 cm cube to what temperature should it be heated under the same pressure so that it occupies a volume of 125 cm cube

Asked by boleneti.saimanvith 25th July 2018, 6:04 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## calculate the volume of dry air at stp that occupies28cm3 at 14c and 750mm hg pressure when saturated with water vapour the vapour pressure of the water at 14c is 12mm hg

Asked by Soham 17th February 2018, 5:10 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## The volume of a given mass of a gas with some pieces of marble in the container at 76 cm pressure is 100 ml if the pressure is changed to 100 cm . The new volume is 80 ml.Find the volume occupied by the marble chips . Temperature constant.

Asked by Rayeesa 1st February 2018, 6:17 AM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## The molecular theory states that the pressure exerted by a gas in a closed vessel results from the gas molecule is striking against the walls of the vessel how will the pressure change if: (a)the temperature is doubled keeping the volume constant (b)the volume is made half of its original volume.

Asked by Abhishek 4th January 2018, 7:20 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## A gas is collected at a pressure of 95 cm of Hg and a temperature of 50 degree centegrade.To what temperature should it be cooled so that it occupies a volume which is 80% of its original volume when the pressure of the gas is 90 cm of Hg.

Asked by Pradeep 31st October 2017, 8:20 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## It is found, on heating a gas, its volume increases by 50% and pressure decreases to 60% of its original value. If the original temperature was -15C, FIND THE TEMPERATRE TO WHICH IT WAS HEATED ?

Asked by jayakhattri62 6th August 2017, 9:47 AM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## A student performed an experiment to measure the pressure and volume of a gas at constant temperaure and noted the following.       Pressure(mm of Hg)             Volume(cm*cm*cm)       100                                                       80     125                                                        x     200                                                       40       y                                                        32   Calculate the value of x and y. Which law was used in the calculations?Draw a  suitable graph.

Asked by Nitin 29th March 2017, 4:26 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## At constant temperature,a gas is at a pressure of 1080mm of Hg.If the volume is decreased by 40%,find the new pressure orf the gas.

Asked by Nitin 29th March 2017, 4:19 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## ;A vessel of capacity 600 cm*cm*cm contains hydrogen gas at a pressure of 304 cm Hg.What will be the pressure of the hydrogen gas, when the vessel is conected to the another vessel of 300 cm*cm*cm  capacity?

Asked by Nitin 29th March 2017, 4:15 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## At a particular temperature,a certain quantity of gas occupies a volume of 74 cm*cm*cm at a pressure of 760 mm.If the pressure is decreased to 740 mm,what will be the volume of the gas at the same temperature?

Asked by Nitin 29th March 2017, 3:53 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## Volume of certain amount of gas at 25 c and 100cm hg pressure is 80mL.the gas is expanded to 160mL keeping the temperature constant. calculate the pressure of expanded gas.

Asked by Nitin 29th March 2017, 3:21 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## A gas at 240K is heated to 127°C.Find the percentage change in the volume of the gas(pressure      remaining constant)(

Asked by saif 14th March 2017, 11:12 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## 561dm3 of a gas at S.T.P is filled in a 748dm3container.If temperature is constant,calculate the percentage change in pressure required

Asked by saif 14th March 2017, 11:11 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## L.P.G cylinder can withstand a pressure of 14.9 atmosphere.The pressure gauge of the cylinder indicates 12 atmosphere at 27°C.Due to a sudden fire in the building the temperature rises.At what temperature will the cylinder explode.

Asked by saif 14th March 2017, 11:08 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## At constant temperature a glass is at a pressure of 1080 mm hg. At what pressure its volume will be decreased by 40%

Asked by Shubham 25th June 2016, 8:27 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## A given mass of a gas occupies 240 ml at 800 mm of Hg. What volume will the gas occupy if the pressure is increased to 1200 mm of Hg, temperature remaining constant?

Asked by Topperlearning User 19th May 2016, 3:35 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## A gas occupies the initial volume of 400 cm3 at a pressure 'Z'. If the pressure is changed to 5 atmosphere, the volume of the gas was found to be 200 cm3. Calculate the value of 'Z'.

Asked by Topperlearning User 19th May 2016, 2:26 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## (a) 20 dm3 of oxygen is contained in a vessel at a pressure of 200 atmosphere. If another empty vessel of similar capacity is connected to it, calculate the common pressure of gas in both the vessels. (b) A gas occupies 200 cm3 at a temperature of 27oC and 720 mm of Hg. Find its volume at 3oC and 740 mm of Hg. (c) Why do liquids flow from higher level to lower level?

Asked by Topperlearning User 19th May 2016, 2:25 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## (a) At a constant temperature, a gas at a pressure of 750 mm of mercury occupies volume of 100cm3. If volume is decreased by 40%, find the new pressure.(b) 2.5 dm3 of dry nitrogen gas is collected at a temperature of 27oC and a pressure of 740 mm of mercury. Find the volume of a gas at S.T.P.

Asked by Topperlearning User 19th May 2016, 2:24 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## What is an ideal gas?

Asked by Topperlearning User 19th May 2016, 2:24 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## Who discovered Boyle's law? State Boyle's law.

Asked by Topperlearning User 19th May 2016, 2:24 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## State Boyle's law.

Asked by Topperlearning User 19th May 2016, 2:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## State Charles' law and give the relation between volume and temperature?

Asked by Topperlearning User 19th May 2016, 2:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## What is Charles' law?

Asked by Topperlearning User 19th May 2016, 2:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## A given mass of a gas is at a temperature of 3oC. When the gas is heated to 95oC at a constant pressure, it occupies a volume of 460 ml. What is the initial volume of the gas?

Asked by Topperlearning User 19th May 2016, 2:22 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## Converted the following temperature (in oC) to the Kelvin temperature.(1) -100oC(2) 273oC(3) 20oC(4) 5oC(5) 10oC

Asked by Topperlearning User 19th May 2016, 2:22 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## The volume of certain gas was found 400 cm3, when pressure was 520 mm of Hg. If the pressure is increased by 30%, find the new volume of the gas.

Asked by Topperlearning User 14th July 2015, 10:44 AM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## A gas is to be filled from a tank of capacity 10,000 litres into cylinders having a capacity of 10 litres each. The pressure inside the tank is 800mm of Hg and the temp is -3C . When the cylinder is filled, the pressure guage reads 400mm of Hg and the temperature is 0c. Find the number of cylinders which will be required to fill the gas.

Asked by jayshree682004 30th July 2014, 2:35 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## A student forgets to add the reaction mixture to a flask at 27C. However he placed the flask on the flame. After a lapse of time he recorded the temperature of the flask with the help of a pyrometer and it was found to be 477C. What fraction of air would have been expelled out?

Asked by neelam827001 26th July 2014, 11:35 AM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## Name the following:(1) The law which studies the relationship between pressure and volume at constant temperature.(2) The law which studies the relationship between temperature and volume at constant pressure.

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## (a) Hydrogen gas occupies a volume of 400cm3 at a temperature of 27oC and normal atmospheric pressure. Find the volume of the gas at 10oC at constant pressure.(b) 6 dm3 of dry gas at temperature of 27oC and pressure of 700 mm Hg. Find the volume of gas at S.T.P.

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## (a) The volume occupied by a certain gas was found to be 5.6 dm3 at 2 atmospheric pressure. If the pressure is increased by 20%, find the new volume of the gas.(b) 100 cm3 of a gas at 27oC is cooled to 20oC at constant pressure. Calculate the volume of gas at 20oC.

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## (a) A gas is enclosed in a vessel at standard temperature. At what temperature, the volume of  a gas enclosed will be 1/6 of its initial volume, at constant pressure?(b) Carbon dioxide occupies a volume of 336 cm3 at S.T.P. Find its volume at 200C and a pressure of 700 mm Hg.

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## Each question has four options out of which only one option is correct. Write the correct option. (i) Choose the air pollutant which is non-acidic. (a) NO2 (b) SO2 (c) SO3 (d) Ozone (ii) Choose the odd one. (a) HCl (b) H2CO3 (c) HNO3 (d) H2SO4 (iii) On adding water to sodium, the solution formed is- (a) Neutral (b) Alkaline (c) Acidic (d) Amphoteric (iv) According to Boyle's law, as the pressure increases volume- (a) Increases (b) Decreases (c) Remains same (d) First increases and then decreases (V) In the element , 11 represents-   (a) Mass number (b) Atomic number (c) Number of neutrons (d) None of these

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## Moist nitrogen at a pressure of 700 mm Hg and temperature 27oC is found to occupy a volume of 100 cm3. Find the volume of dry nitrogen gas at S.T.P.(Aqueous tension at 27oC is 15 mm Hg)

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## A given mass of a gas occupies 960 ml at 27oC. What volume will it occupy if the temperature is raised to 177oC, pressure remaining constant.

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## Convert: 0oC to K and 400 K to oC?

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## 200 ml of a gas at 27oC and 1140 mm pressure is transferred to a vessel of 450 ml capacity. What temperature is to be applied, if the pressure applied is 1 atmosphere?

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## What is a gas equation?

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## What is absolute zero and absolute (Kelvin) scale?

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!

## WHAT IS CHARLE'S LAW???

Asked by ria.sharma 9th May 2014, 9:06 PM
Answered by Expert

## Answer this question

×
Your answer has been posted successfully!