Chemistry - Chemical Equilibrium Question with Solution | TestHub

The exothermic formation of ${\mathrm{CIF}}_3$ is represented by the equation : $${\mathrm{CI}}_{2(\mathrm{g})}+3{\mathrm{F}}_{2(\mathrm{g})}\rightleftharpoons 2{\mathrm{ClF}}_{3(\mathrm{g})};\Delta \mathrm{H}=-329\mathrm{kJ}$$ Which of the following will increase the quantity of ${\mathrm{CIF}}_3$ in an equilibrium mixture of ${\mathrm{CI}}_2,{\mathrm{F}}_2$ and ${\mathrm{CIF}}_3?$