Q.

1 L of CO2  gas 127oC is expanded adiabatically to y liters and final temperature is  73oC what is value of  y?

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answer is 8.

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Detailed Solution

In adiabatic process TVγ1=  constant

T1T2=V2V1γ-1
So  400.(1)1/3=(200).(y)1/3
y=8
 

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