List of top Chemistry Questions on Equilibrium Constant asked in UPSEE

What is the correct volume of equilibrium constant for the following reaction at 400 K if the values of $\Delta H^{\circ}$ is 77.5 kJ $mol^{-1}$ and $ {\Delta S^{\circ} = 135 \; JK^{-1} \; mol^{-1}}$ $ {2NOCl{(g)} <=> 2NO{(g)} + Cl_2{(g)}}$

For the following three reactions (i), (ii) and (iii), equilibrium constants are given (i) $ {CO_{(g)} + H_2O_{(g)} <=> CO_{2(g)} + H_{2(g)} ; K_1}$ (ii) $ { CH_{4(g)} + H_2O_{(g)} <=> CO_{(g)} 3H_{2(g)} ; K_2}$ (iii) $ {CH_{4(g)} + 2H_2O_{(g)} <=> CO_{2(g)} + 4H_{2(g)} ; K _3}$ Which of the following relation is correct?

What will be the value of $\Delta G$ and $\Delta G ^{\circ}$ for the reaction, $A + B \rightleftharpoons C + D$ at $27^{\circ} C$ for which $K=10^{2}$ ?