Question

calculate the standard enthalpy of combustion of CH4 if standard enthalpy of formation of H2O = -285.5 KJ

Answer 1

Answer:

calculate the standard enthalpy of combustion of CH4 if standard enthalpy of formation of H2O = -285.5 KJ

Explanation:

calculate the standard enthalpy of combustion of CH4 if standard enthalpy of formation of H2O = -285.5 KJ

Answer 2

Answer:

Explanation:

Given: ΔfH° (CO2) = – 393.5 kJ mol–1 ΔfH° (H2O)= – 285.8 kJ mol–1 ΔfH°(CH4) = – 74.8 kJ mol–1

To find: Standard enthalpy of combustion (ΔcH°)

Formula: ΔrH° = ∑ΔfH°(products) − ∑ΔfH° (reactants)

Calculation: The equation for the combustion of CH4 is.