An insulated vessel contains 1mole of a liquid, molar volume `100mL` at 1bar. When liquid is steeply passed to `100`bar, volume decreases to `99mL`. Find `DeltaH` and `DeltaU` for the process.

Explanation

From first law of thermodynamics:
`DeltaU=q+w`
`DeltaU=q+PDeltaU=0+{-100(99-100)}`
`=100` bar mL
`DeltaH=DeltaU+(P_(2)V_(2)-P_(1)V_(1))`
`=100+(100xx99-1xx100)`
`=9900` bar mL.