Chemistry - Thermochemistry Question with Solution | TestHub

What is the ratio of the enthalpy yield on combustion of hydrogen atoms to steam to the yield on combustion of an equal mass of hydrogen molecules to steam?

Given: $H_2(g)+\frac{1}{2}{O}_2(g)⟶H_{2}O(g)$; $\Delta H=-242kJ$

(B.E.) (H–H) = $436kJ$