Question

Calculate the standard enthalpy change for the formation of ethane (C2 H 6)at298°K.

Given that,C (s)+O2 (g)=CO2 (g),Δ H °f, 298=- 393K J/mol.

H2(g)+ ½O2 (g)=H 2 O (l),Δ H °f, 298=- 286K J/mol.

C 2 H 6 (g)+ 7/2O2(g)=2 CO2 (g)+3 H 2O (l)​

Answer 1

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