1.

Which of the reaction defines molar DeltaH_(f)^(0)?

Answer»

`CaO(s) + CO_(2)(g) rarr CaCO_(3)(s)`<BR>`(1)/(2)Br_(2)(l) + (1)/(2)H_(2)(g) rarr HBr(g)`
`N_(2)(g) + 2H_(2)(g) + (3)/(2)O_(2)(g) rarr NH_(4)NO_(3)(s)`
`(1)/(2)I_(2)(s) + (1)/(2)H_(2)(g) rarr HI(g)`

Solution :N//A


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