Enthalpies of formation of CCl4(g), H2O(g), CO2(g) and HCl are –105, –242, –394 and –92 kJ mol–1 respectively. The magnitude of enthalpy of the reaction given below is _________ kJ mol–1. (nearest int

Question

Enthalpies of formation of CCl4(g), H2O(g), CO2(g) and HCl are –105, –242, –394 and –92 kJ mol–1 respectively. The magnitude of enthalpy of the reaction given below is _________ kJ mol–1. (nearest integer) CCl4(g) + 2H2O(g) CO2(g) + 4HCl(g)

Prashant Kotian · Accepted Answer

Correct answer: .. )r, O H ( H ) CCl ( H – ) HCl ( H ) g , CO ( H H º f º f º f º f º f         = [–394] +4 [–92] + 105 – 2× [242] = – 394 – 368 + 105 + 484 = – 173 kJ/mole

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