For the reaction:
2SO2(g) + O2(g) \(\rightleftharpoons\) 2SO3(g); ΔH = – 45.2 kcals
The number of moles of SO3 will increase on
1
Removing O2 from the reaction mixture
2
Increasing the temperature of the system
3
Increasing the pressure of the system by adding an inert gas
4
Decreasing the volume of the reaction mixture.