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10 moles of a van der Waals' gas are sub...

`10` moles of a van der Waals' gas are subjected to a process from `2L,300 K` to `2 L, 350 K`.
Given: `{:(C_(vm)=20 J//"mole"-K," "b=0.04 L//"mole"),(C_(pm)=30 J//"mole"-K," "a="negligible"):}`
Calculate `DeltaH ("in" KJ)`.
`[`Given`:R=0.08` litre atm `K^(-1)"mol"^(-1.),`
`1` litre atm `=100 J]`

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