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For gaseous reactions, if DeltaH is the ...

For gaseous reactions, if `DeltaH` is the change in enthalpy and `DeltaU` that in internal energy, then

A

`Delta H` is always greater than `Delta U`

B

`Delta H` is always less than `Delta U`

C

`Delta H lt Delta U` only if the number of mole of the products is less than that of the reactants

D

`Delta U lt Delta H` only if the number of mole of the reactants is less than that of the products

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The correct Answer is:
C, D
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