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The DeltaH(f)^(@) for CO(2)(g), CO(g) an...

The `DeltaH_(f)^(@)` for `CO_(2)(g)`, CO(g) and `H_(2)O(g)` are `-395.5,-110.5` and `-241.8" kJ" mol^(-1)` respectively. The standard enthalpy change in (in kJ) for the reaction
`CO_(2)(g)+H_(2)(g)toCO(g)+H_(2)O(g)` is

A

`+524.1`

B

`+ 41.2`

C

`-262.5`

D

`-41.2`

Text Solution

Verified by Experts

The correct Answer is:
B
`CO_(2)(g) + H_(2)(g) to CO(g) + H_(2)O(g)`
`Delta H = sum Delta_(f) H^(@)("products") - sum Delta_(f) H^(@)("reactants")`.
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