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Calculate DeltaU for a gas, if enthalpy ...

Calculate `DeltaU` for a gas, if enthalpy change is 40 atm-L for the state change (5 atm, 10 L) to (3 atm,15 L) :

A

45 atm-L

B

35 atm-L

C

30 atm-L

D

40 atm-L

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A
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