Question
A mixture of 20 mL CO, CH4 and N2 was burnt in excess of O2, resulting in reduction of 13 mL of volume. The residual gas was then treated with KOH solution to show a contraction of 14 mL in volume. The amount of volume (in mL) of N2 in the mixture is: (assume H2O is in the liquid state and all measurements are made at constant P and T)