Consider the reaction:

Question

CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(l) ΔH = - 890.3 kJ
What volume of CH4(g) at 25°C and 755 Torr will produce 88600 kJ of heat when reacted with excess oxygen?

Answer 1

88,600 kJ x (1 mol/890.3) = ?? moles CH4.
Then use PV = nRT to convert to volume.