Calculate ?h for the reaction 2cs h2g ? c2h2g given the, Ask an Expert

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Calculate ?H for the reaction 2C(s) + H2(g) ? C2H2(g) given the following reactions and their respective enthalpy changes

1. C2H2(g) + 5/2 O2(g) ? 2CO2(g) + H2O(l) ?H= ?1299.6 kJ

2. C(s) + O2(g) ? CO2 (g) ?H= ?393.5 kJ

3. H2(g) + ½ O2(g) ? H2O(l) ?H= ?285.8 kJ

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Category:- Chemistry
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