NEET Chemistry Enthalpy MCQ Question
What is the enthalpy change for the complete combustion of 2 moles of ethanol (C2H5OH) in its standard state given that the reaction for 1 mole of ethanol is C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l); ∆rH = -1367 kJ mol-1?
-2734 kJ
-1367 kJ
-683.5 kJ
-5470 kJ
Correct Answer
Detailed Explanation
The enthalpy change for the combustion of 1 mole of ethanol is given as -1367 kJ. For 2 moles, it would be 2 * -1367 kJ = -2734 kJ.
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