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ICSE Class 9 Answered

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 | 01 Feb, 2018, 06:17: AM
answered-by-expert Expert Answer
Let space the space volume space occupied space by space the space marble space piece space equals space straight V space ml At space 760 space mm space Hg comma space the space volume space occupied space by space the space gas space equals space left parenthesis 100 minus straight V right parenthesis space ml At space 1000 space mm space Hg comma space space the space volume space occupied space by space the space gas space equals space left parenthesis 80 minus straight V right parenthesis space ml By space Boyle apostrophe straight s space law comma space straight P subscript 1 straight V subscript 1 space equals space straight P subscript 2 straight V subscript 2 space space space space space space space space space space space space space space therefore space 760 space cross times space left parenthesis 100 minus straight V right parenthesis space equals space 1000 space cross times space left parenthesis 80 minus straight V right parenthesis space space space space space space space space space space space space space space space space space space space 76000 minus space 760 straight V space space space equals space 80000 space minus space 1000 space straight V space space space space space space space space space space space space space space space space space space 1000 space straight V space space minus space 760 straight V space equals space space space 80000 space minus space 76000 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 space space space space space space space 240 space straight V space space space space equals space space space 4000 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 space space space space space space space space space space space space space space space space space space space space straight V space space equals 4000 over 240 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 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 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 straight V space equals space 16.6 space ml The space volume space occupied space by space marble space piece space is space 16.6 space ml space space space space space space space space space space space
Answered by Ramandeep | 01 Feb, 2018, 05:19: PM

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ICSE 9 - Chemistry
A container containing hydrogen gas is heated such that its volume increases by 40% and  pressure decreases to 80% of its original value. If the original temperature was – 130C,  calculate the temperature to which the gas was heated.
Asked by zainaali39692 | 04 Dec, 2020, 08:53: AM
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ICSE 9 - Chemistry
A gas occupies a volume of 340 CC at STP find its volume at 20 degrees celsius and 700 mm of HG
Asked by gup.navya2006 | 01 Dec, 2020, 09:28: AM
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ICSE 9 - Chemistry
100cm3 of a gas at 27°c is cooled to 20°c at constant pressure .calculate volume of a gas at 20°c
Asked by Vishusingh2020.2021 | 25 Sep, 2020, 10:09: PM
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ICSE 9 - Chemistry
A vessel of capacity 600 cm cube contains hydrogen gas at a pressure of 304 cm what will be the pressure of hydrogen gas when the vessel is connected to another vessel of 300 cm cube capacity
Asked by sudesghnapattanayak2017 | 19 May, 2020, 08:13: PM
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ICSE 9 - Chemistry
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 -15 degree celcius, find the temperature to which it was heated in celcius
Asked by abeshchakraborty6 | 23 Feb, 2020, 08:54: AM
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ICSE 9 - Chemistry
At constant temperature, a gas is at a pressure of 1080 mm Hg. If the volume is decreased by 40%, find the new pressure of gas
Asked by dnlwalkers | 08 Jan, 2020, 09:57: AM
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ICSE 9 - Chemistry
a gas occupies 200 cm3 at 27 degree celsius. what is its volume at 51 degree celsius , the pressure being kept constant?
Asked by raichuratanvi | 14 Dec, 2019, 12:02: PM
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ICSE 9 - Chemistry
Ammonia gas occupies volume of 450ml at a pressure of 720mm of HG what volume will it occupies at standard pressure at the same temperature
Asked by merajanjum87 | 21 Nov, 2019, 09:53: PM
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ICSE 9 - Chemistry
A gas x occupies a volume of 200ml at a pressure of 4 atmospheres. If the temperature remains constant what volume will it occupy at 1atmospheric pressure
Asked by parvathimanjunath24 | 31 Oct, 2019, 09:34: PM
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ICSE 9 - Chemistry
I didn’t understood v vs 1/p graph
Asked by devbhaisha.tl | 21 Sep, 2019, 10:02: PM
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