when a gas expands from 1. 5L to 6.5 L againt a constant pressure of 0 – InterviewSolution

1.	when a gas expands from 1. 5L to 6.5 L againt a constant pressure of 0.50 atm and during process , the gas also absorbs 100 J of heat. The change in internal energy is
Answer» 153.3 J 353.3 J `-153 . 3 J` `-353 . 3 J` SOLUTION :`(-W)=P_(ext)DeltaV=0.5(6.5 -1.5)` `=2.5 L- atm=2.5xx101.3J = 253.25J` `DeltaU+q+W=100-253.25=-153.25J`

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