Chapter 15, Problem 58E

In the gas phase, iodine reacts with cyclopentene $\left({\text{C}}_{\text{6}}{\text{H}}_{\text{8}}\right)$ by a free radical meachainm to cyclopentapentadiene $\left({\text{C}}_{\text{6}}{\text{H}}_{\text{8}}\right)$ and hydrogen iodide. Explain how each of the following affects the amout of Hl(g) present in the equilibrium mixture in the reaction

${\text{I}}_{\text{2}}\left(g\right)+C_5{H}_8\left(g\right)\rightleftharpoons C_5{H}_6\left(g\right)+2HI\left(g\right){\Delta }_{t}H°=92.5\text{kJ}{\text{mol}}^{-1}$

(a) Raising the temperature of the mixture; (b) introducing more $C_5{H}_6\left(g\right)$ at constant volume; (c) doubling the volume of the container holding the mixture; (d) adding an appropriate catalyst; (e) adding an inert gas such as He to a constant-volume reaction mixture.