Chemistry - Chemical Equilibrium Question with Solution | TestHub

${\mathrm{H}}_2\mathrm{O}(l)\rightleftharpoons {\mathrm{H}}_2\mathrm{O}(g);K_C=\left[H_2\mathrm{O}(g)\right]$

${\mathrm{CH}}_3{\mathrm{COOC}}_2{\mathrm{H}}_5(aq)+{\mathrm{H}}_2\mathrm{O}(l)\rightleftharpoons {\mathrm{CH}}_3\mathrm{COOH}(aq)+{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}(aq)$;

$K_C=\frac{\left[{\mathrm{CH}}_3\mathrm{COOH}\right]\left[{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}\right]}{\left[{\mathrm{CH}}_3{\mathrm{COOC}}_2{\mathrm{H}}_5\right]\left[{\mathrm{H}}_2\mathrm{O}(l)\right]}$

$4{\mathrm{FeS}}_2(s)+15{\mathrm{O}}_2(g)+6{\mathrm{H}}_2\mathrm{O}(l)\rightleftharpoons 4\mathrm{Fe}(\mathrm{OH}{)}^{2+}(aq)+8{\mathrm{HSO}}_4^{-}(aq)$;

$K_C=\frac{{\left[\mathrm{Fe}(\mathrm{OH}{)}^{2+}\right]}^4{\left[{\mathrm{HSO}}_4^{-}\right]}^8}{{\left[{\mathrm{O}}_2\right]}^{15}{\left[{\mathrm{H}}_2\mathrm{O}(l)\right]}^6}$

$\mathrm{HCOOH}(1)+{\mathrm{CH}}_3\mathrm{OH}(1)\rightleftharpoons {\mathrm{HCOOCH}}_3(1)+{\mathrm{H}}_2\mathrm{O}(1)$;

$K_C=\frac{\left[{\mathrm{HCOOCH}}_3\right]\left[{\mathrm{H}}_2\mathrm{O}(l)\right]}{[\mathrm{HCOOH}]\left[{\mathrm{CH}}_3\mathrm{OH}\right]}$