Chemistry > 2012 > 27
JAMB UTME
CO(g) + H2O(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 kJ mol-1 are -394, -242 and -110 respectively.
Calculate the standard heat change of the reaction above, if the standard enthalpies of formation of CO2(g), H2O(g) and CO(g) in kJ mol-1 are -394, -242 and -110 respectively.
A.
+262 kJ mol-1
B.
-262 kJ mol-1
C.
+42 kJ mol-1
D.
-42 kJ mol-1
Answer: D
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