List of top Chemistry Questions on Equilibrium asked in MHT CET

For the equilibrium reaction: \[ N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g) \] At a certain temperature, the equilibrium constant \( K_c \) is 4.0. If the concentrations of \( N_2 \), \( H_2 \), and \( NH_3 \) are 0.2 M, 0.6 M, and 0.4 M, respectively, calculate the reaction quotient \( Q_c \) and determine whether the reaction is at equilibrium.
For the reaction \( \text{N}_2 (\text{g}) + 3\text{H}_2 (\text{g}) \rightleftharpoons 2\text{NH}_3 (\text{g}) \), the equilibrium constant \( K_c \) is \( 4.0 \times 10^{-2} \) at a certain temperature. If the equilibrium concentrations are \( [\text{N}_2] = 0.5 \, \text{M} \) and \( [\text{H}_2] = 1.5 \, \text{M} \), what is the equilibrium concentration of \( \text{NH}_3 \)?