`Delta H_(1)^(@)` for `CO_(2)(g)`, `CO(g)` and `H_(2)O(g)` are `-393.5,-110.5` and `-241.8 kJ mol^(-1)` respectively. Standard enthalpy change for the reaction `CO_(2)(g)+H_(2)(g) rarr CO(g) + H_(2)O(g)` isA. `524.1`B. `+41.2`C. `-262.5`D. `-41.2`

`Delta H_(1)^(@)` for `CO_(2)(g)`, `CO(g)` and `H_(2)O(g)` are `-393.5

1.	`Delta H_(1)^(@)` for `CO_(2)(g)`, `CO(g)` and `H_(2)O(g)` are `-393.5,-110.5` and `-241.8 kJ mol^(-1)` respectively. Standard enthalpy change for the reaction `CO_(2)(g)+H_(2)(g) rarr CO(g) + H_(2)O(g)` isA. `524.1`B. `+41.2`C. `-262.5`D. `-41.2`
Answer» `CO_(2)(g)+H_(2)(g) rarr CO(g) +H_(2)O(g)` `DeltaH^(Theta) = {[Delta_(f)H^(Theta) CO, (g)+Delta_(f)H^(Theta)H_(2)O,(g)] -Delta_(f)H^(Theta)CO_(2),(g)}` `= [(-110.5)+(-241.8(-(-393.5+0))]` `= +41.2 kJ` `Delta_(f)H^(Theta) H_(2),(g) = 0` `Delta_(f)H^(Theta) = 0` in elementary state

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`Delta H_(1)^(@)` for `CO_(2)(g)`, `CO(g)` and `H_(2)O(g)` are `-393.5,-110.5` and `-241.8 kJ mol^(-1)` respectively. Standard enthalpy change for the reaction `CO_(2)(g)+H_(2)(g) rarr CO(g) + H_(2)O(g)` isA. `524.1`B. `+41.2`C. `-262.5`D. `-41.2`

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