momoney6122 momoney6122 11-03-2024 Chemistry contestada The enthalpy of combustion of methane, graphite and dihydrogen at 298K are -890.3kJmol⁻¹, -393.5kJjmol⁻¹, and -285.8kJmol⁻¹ respectively. calculate enthalpy of formation of CH₄(g).