CO(g) + H2 O(g) → CO2(g) + H\(_{2...
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
Correct answer is D
ΔH(formation)(CO2)=−394
ΔH(formation)(H2O)=−242
ΔH(formation)(CO)=−110
X=∑HFP−∑HFR
= (-394+ 0) - (-110 - 242 )
= -394 +352
= - 42 kJmol−1
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