Calculate percentage, Physics

By what percentage should the pressure of a given mass of gas be increased,so as to decrease its volume  by 10% at a constant temperature.

Posted Date: 4/5/2013 2:46:24 AM | Location : United States





P1V1/T1=P2V2/T2

 

BUT TEMP. REMAINS CONSTANT.

 

SO P1V1=P2V2

 

OR P1V1=P2(V1-V1/10)

 

OR P1V1=P2*9V1/10

 

OR P1=9P2/10

 

OR P2=10P1/9

 

NOW, PERCENTAGE INCREASE=(P2-P1)*100/P1

 

WHICH IS EQUAL TO 100/9% 

Posted by Dona | Posted Date: 4/5/2013 2:46:41 AM


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