Chemistry - Chemical Equilibrium Question with Solution | TestHub

Assume that the decomposition of ${\mathrm{HNO}}_3$ can be represented by the following equation

$$4HN{O}_3(g)\to 4N{O}_2(g)+2H_{2}O(g)+O_2(g)$$

and that at a given temperature 400 K and pressure 30 atm the reaction approaches equilibrium. At equilibrium partial pressure of ${\mathrm{HNO}}_3$ is 2 atm . Calculate ${\mathrm{K}}_{\mathrm{C}}$ in $(\mathrm{mol}/\mathrm{L}{)}^3$ at 400 K . (Use $\mathrm{R}=0.08\mathrm{atm}-\mathrm{L}/\mathrm{mol}.\mathrm{K}$ )