A) \[B{{r}_{2(g)}}\]
B) \[C{{l}_{2(g)}}\]
C) \[{{H}_{2}}{{O}_{(g)}}\]
D) \[C{{H}_{4}}_{(g)}\]
Correct Answer: B
Solution :
Elements in its standard state have zero enthalpy of formation. \[C{{l}_{2}}\]is gas at room temperature. hence \[\Delta H_{f}^{o}\] of \[C{{l}_{2(g)}}\] is zeroYou need to login to perform this action.
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