88 g chunk of dry ice and 30 g graphite were placed in a 5 litre container and the…

CHEMISTRY · Subjective · A Level · Chemistry · Gaseous equilibria (Kp) · Gaseous equilibria (Kp)

Problem

88 g chunk of dry ice and 30 g graphite were placed in a 5 litre container and the mixture was heated to achieve the equilibrium :

\text{CO}_2(g) + \text{C}(s) \rightleftharpoons 2\text{CO}(g)

Calculate the value of

K_P

1000 \text{ K}

if the density of gas mixture is

18.3 \text{ g/litre}

. What is the value of

K_P

1100 \text{ K}

if density of gas mixture is

18.9 \text{ g/litre}

. Also calculate the enthalpy of reaction.