Test SeriesFree PYQsExamsPricing

MHT CET 2026 Chemistry question

ChemistryThermodynamicsMHT CET 2026

The enthalpy of combustion of C, and are -390, -285 and -890 kJ/mol. Find the enthalpy of formation of methane

Answer: (A)

Solution

Formation: . Use (), () and (). By Hess's law, Missing superscript or subscript argumentΔ_fH = Δ_cH(C) + 2Δ_cH(H_2)Missing superscript or subscript argument - Δ_cH(CH_4)$ = -390 +

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-101476