Geo-Scientist Prelims 2026 Chemistry Q59: The correct value for the non-expansion work that can be obtained…

The correct value for the non-expansion work that can be obtained from the combustion of 2·00 mol of methane under standard conditions at 300 K is Given that : ΔᵣS° = −243 J K⁻¹ mol⁻¹, ΔfH°(CH₄, g) = −75 kJ mol⁻¹, ΔfH°(CO₂, g) = −393 kJ mol⁻¹, ΔfH°(H₂O, l) = −286 kJ mol⁻¹

1. (a) −1760 kJ
2. (b) −1634 kJ
3. (c) 144 kJ
4. (d) −817 kJ