Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

5.18 sum plz
question image
Asked by lovemaan5500 | 26 Jan, 2019, 12:53: PM
answered-by-expert Expert Answer
Note that, on heating a gas in a vessel, it is the moles of gas which go out, the volume of gas remains constant.
 
Let,
 
Initial moles of gas at T1 = 298 K = n
 
On heating 1/5th  of moles of gas escapes out at T2.
 
Moles space of space gas space left space equals space straight n minus space 1 fifth straight n space space space space space space space space space space space space space space space space space space space space space space space space space equals space 4 over 5 straight n Now comma straight n subscript 1 straight T subscript 1 space equals space straight n subscript 2 straight T subscript 2 straight n cross times 298 space equals space 4 over 5 straight n cross times straight T subscript 2 straight T subscript 2 space equals space fraction numerator up diagonal strike straight n cross times 298 cross times 5 over denominator 4 up diagonal strike straight n end fraction space space space space equals space 1490 over 4 straight T subscript 2 space equals 372.5 space straight K space space space space equals space 372.5 space minus space 273 space space space space space equals space 99.55 space to the power of degree straight C
 
The required temperature is 99.55 °C.
 
 
 
Answered by Varsha | 28 Jan, 2019, 12:24: PM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 11-science - Chemistry
1.0 mole of nitrogen and 3.0 moles of PCl 5 are placed in 100 L vessel heated to 227 o C. The equilibrium pressure is 2.05 atm. Assuming ideal behaviour, calculate the degree of dissociation for PCl 5 and K p for the reaction, PCl 5 (g)⇌PCl 3 (g)+Cl 2 (g).
Asked by vishalrolaniya2005 | 20 Sep, 2023, 08:58: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
The volume of SO2 gas (in l.mol 1) at 0◦C and 1 atmospheric pressure-760mm of Hg is equal to 22.4. Estimate the value of volume of the gas at 20◦C and 1 atmospheric pressure. Use Avogadro’s law of gas.
Asked by amanpatel95698 | 02 Mar, 2022, 12:09: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
an ideal gas mixture contains 4 milimoles of H2 for every mili mole of Ne .The partial pressure of Ne is ?
question image
Asked by pushpakumari291279 | 31 Dec, 2020, 02:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
696v7v
question image
Asked by aryanvankar88 | 11 Oct, 2020, 10:07: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
What is a pressure in stp ? What we choose in sum1 atm or 1 bar at stp ?  
Asked by devanshuchhipani | 12 Mar, 2020, 08:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Is pressure directly proportional to temperature and inversly proportional to volume 
Asked by ritua7330 | 01 Sep, 2019, 12:53: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
You are provided with samples of O2,N2,CO2 and CO under similar conditions of temperature and pressure that they contain the same number of molecules represented by letter M . The molecules of O2 occupy the volume of N litres and have a mass of 8g under similar conditions of temperature and pressure A) I) what volume is occupied by M molecules of N2? II) what volume is occupied by 3M molecules of CO ? B) what is the mass of CO2 in grams C) name the law of above questions
Asked by sajidivakaran | 21 Jul, 2019, 09:41: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
The volume occupied by a certain gas was found 5.6 dm3  when the pressure was 2 atmosphere. If the  pressure is increased by 15%, find the new volume of the gas.
Asked by shashank1854 | 28 May, 2019, 04:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
At a given temperature the pressure of gas reduces to 75% of its initial value and the volume increases by 40% of its initial value. Find the temperature if the initial temperature was -10 degree Celsius. 
Asked by skkvaish | 23 May, 2019, 08:20: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
A gaseous mixture contains CO and SO2 in equimolecular proportion.The weight of 2.24 L of this mixture at NTP is?
Asked by pb_ckt | 19 May, 2019, 11:54: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×