Consider the following cases of standard enthalpy of reaction ( H_f^o in kJ mol^ -1 ) C_2H_6(g) + 7 2 O_2(g)...

Question

Consider the following cases of standard enthalpy of reaction ( H_f^o in kJ mol^ -1 ) C_2H_6(g) + 7 2 O_2(g) 2CO_2(g) + 3H_2O( ) H_1^o = -1550 C(graphite) + O_2(g) CO_2(g) H_2^o = -393.5 H_2(g) + 1 2 O_2(g) H_2O( ) H_3^o = -286 The magnitude of H_ f C_2H_6(g) ^o is ______ kJ mol^ -1 (Nearest integer).

Accepted Answer

95

JEE Main 2025 Chemistry question

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