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If DeltaH is the change in enthylpy and ...

If `DeltaH` is the change in enthylpy and `DeltaU`, the change in internal energy accompanying a gaseous reactant then

A

`DeltaH` is always greater than `DeltaU`

B

`DeltaHlt DeltaU` only if the number of moles of the products is greater than the number of the reactants

C

`DeltaH` is always less than `Delta U`

D

`DeltaHlt DeltaU` only if the number of moles of the products is less than the number of moles of the reactants

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The correct Answer is:
D
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