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For which of the following reactions, de...

For which of the following reactions, `deltaH = deltaU`?

A

`H_2(g) +l_2(g) rarr 2Hl(g)`

B

`N_2(g)+3H_2(g)rarr2NH_3(g)`

C

`C(s)+H_2O(g)rarrCO(g)+H_2(g)`

D

`CH_4(g)+H_2O(g)rarrCO(g)+3H_2(g)`

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