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06/10/2020 5:02 pm
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The ΔH°f for CO2 (g), CO(g) and H2O (g) are -393.5, -110.5 and –241.8 kJ mol-1 respectively. The standard enthalpy change (in kJ) for the reaction
CO2 (g) + H2(g)→ CO(g) + H2O (g) is
(a) 524.1
(b) 41.2
(c) -262.5
(d) -41.2
1 Answer
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06/10/2020 5:06 pm
(b) 41.2
Explanation:
ΔH = ΔH°f (products) - ΔH°f (reactants)
= –110.5 + (-241.8) - (-393.5+0) = 41.2 kJ