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ICSE Class 9 Answered

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 | 31 Oct, 2017, 08:20: PM
answered-by-expert Expert Answer
As per gas laws

begin mathsize 12px style fraction numerator p subscript 1 v subscript 1 over denominator T subscript 1 end fraction space equals space fraction numerator p subscript 2 v subscript 2 over denominator T subscript 2 end fraction fraction numerator 95 cross times v 1 over denominator 323 end fraction space equals space fraction numerator 90 cross times 0.8 cross times v 1 over denominator T subscript 2 end fraction H e n c e space T subscript 2 equals space fraction numerator 90 cross times 0.8 cross times 323 over denominator 95 end fraction space equals space 244.8 space K end style
Answered by Ramandeep | 01 Nov, 2017, 11:26: AM

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ICSE 9 - Chemistry
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