Question

Calculate the value of $K_c$ for each of the following equilibria from the value of $K_p$ :
$CaCO3(s)\rightleftharpoons CaO(s)+CO2(g);K_p=167$ at $1073K$ . Calculate the value $100K_c$ ?

Answer 1

Answer: 189

$CaC{O}_3(s)\rightleftharpoons CaO(s)+C{O}_2(g);K_p=167$ at $1073K$
$\Delta {\text{n}}_{\text{g}}={\text{n}}_{\text{p}}-{\text{n}}_{\text{r}}=1$
$K_c=\frac{K_p}{(RT{)}^{\Delta n_g}}=\frac{167}{0.0821\times 1073}=1.89100K_c=189$