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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 `(2.0atm,3.0L,95K)rarr(4.0atm,5.0L,245K)`
With a change in internal energy `DeltaE=30L` atm. The change in enthalpy `(DeltaH)` in the process in `L`-atm is

A

`40.0`

B

`42.3`

C

`44.0`

D

Not defined because the pressure is not constant.

Text Solution

Verified by Experts

`H = U +PV`
`H_(1) = U_(1) +(2xx3) = U_(1) +6`
`H_(2) = U_(2) +(4xx5) = U_(2) +20`
`(H_(2) - H_(1)) = (U_(2)-U_(1)) +(20 -6)`
`DeltaH = DeltaU +14 = 30 +14 = 44 L atm`
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