1.

1 cf at liquid of molar volume 100 mL is kept in an adiabatic container under a pressure of 1 bar.The pressure is steeply increased to 100 bar.Under this constant pressure of 100 bar, the volume of the liquid decreases by 1 mL.Calculate DeltaU of the process.

Answer»


SOLUTION :`DeltaU=10J`
`DeltaU=DeltaQ+DeltaW`
for adiabatic process `DeltaQ=O`
`:. DeltaU=DeltaW=-PDeltaV= -100xx10^5(-10^(-6))=10 J`


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