C+O_2(g\toCO_2)......(i) \DeltaH=-393kJmol^{-1} H_2+1/2O_2\toH_2......(ii) \DeltaH=-287.3kJmol^{-1} 2CO_2+3H_2O\toC_2H_5OH+3O_2....(iii) \DeltaH=1366.8kJmol^{-1} Find the standard enthalpy of formation of

Correct Answer is : −281.1kJmol−1

AIIMS 26 May 2019 Morning Question Paper with solutions for online practice

Question : 70 of 146

Marks: +1, -0

C+O2(g→CO2)......(i) ΔH=−393kJmol−1
H2+

O2→H2......(ii) ΔH=−287.3kJmol−1
2CO2+3H2O→C2H5OH+3O2....(iii) ΔH=1366.8kJmol−1
Find the standard enthalpy of formation of

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