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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:
B
When both `P` and `V` are changing
`Delta H=Delta U+Delta (PV)=Delta U+(P_(1)V_(2)-P_(1)V_(1))=40+(20-3)=57L-atm`
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