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One mole of a non-ideal gas undergoes a ...

One mole of a non-ideal gas undergoes a change of state from (1.0 atm, 3.0 L, 200 K) to (4.0 atm, 5.0 L, 250 K) with a change in internal energy `(DeltaU) = 40 ` L-atm. The change in enthalpy of the process in L-atm :

A

43

B

57

C

42

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
2
When both P and V are changing
`DeltaH=DeltaU=+Delta(PV)" "=DeltaU+(P_(2)V_(2)-P_(1)V_(1))=40+(20-3)" "=57L-atm`
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