Jee Main
Thermodynamics
JEE Main 2026 (Online) 21st January Evening Shift
MCQ+4 / -12026
Consider the following data :
$\Delta_{f}H^{\circ}$ (methane, g) = $-X \; \text{kJ mol}^{-1}$
Enthalpy of sublimation of graphite = $Y \; \text{kJ mol}^{-1}$
Dissociation enthalpy of $H_2 = Z \; \text{kJ mol}^{-1}$
The bond enthalpy of C–H bond is given by :