δ H of which of the following reaction(s) may be directly taken as enthalpy of combustion of the con — Thermodynamics and Thermochemistry Chemistry Question

💡 Solution & Explanation

(a) Exactly 1 mole of carbon burned completely to $CO_2$ — represents combustion enthalpy. (b) 2 moles of ethane — δ H is twice combustion enthalpy. (c) Incomplete combustion ($CO$ formed). (d) Formation of $NO$, not combustion.