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JAMB Chemistry 2012 Paper

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Question : 26

Total: 45

CO(g) + H‌2 O‌(g) → CO‌2(g) + H‌2(g)
Calculate the standard heat change of the reaction above, if the standard enthalpies of formation of CO‌2(g), H‌2O‌(g) and CO‌(g) in kJmol‌−1 are - 394, -242 and - 110 respectively.

+ 262 KJ mol ^-1
- 262 KJ mol ^-1
+ 42 KJ mol ^-1
- 42 KJ mol ^-1

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