NEET Chemistry Chemical Equilibrium Characteristic Of Equillibrium MCQs

For the reversible reaction $N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g)$ at 500°C, the value of $K_p$ is $1.44 imes 10^{-5}$. What is the value of $K_c$ at the same temperature? (R = 0.0821 L atm/mol K)

At a certain temperature, the equilibrium constant $K_c$ for the reaction $2NOCl(g) \rightleftharpoons 2NO(g) + Cl_2(g)$ is $4.6 imes 10^{-4}$. If 2.0 moles of NOCl are placed in a 1.0 L container, what are the equilibrium concentrations of NO and $Cl_2$?

A reaction mixture for the reversible reaction $A(g) + 2B(g) \rightleftharpoons C(g)$ is at equilibrium at a given temperature. If the equilibrium partial pressures are $P_A$ = 0.2 atm, $P_B$ = 0.4 atm, and $P_C$ = 0.6 atm, what would be the effect of increasing the pressure of A to 0.3 atm while keeping the volume and temperature constant?

For the reaction $2SO_2(g) + O_2(g) \rightleftharpoons 2SO_3(g)$, $\Delta H$ = -198 kJ/mol. Which of the following changes will NOT increase the yield of $SO_3$ at equilibrium?

A system at equilibrium is described by the reaction $A(g) + B(g) \rightleftharpoons C(g)$ with $K_c = 10$ at 298 K. If the initial concentrations are [A] = 0.1 M, [B] = 0.2 M, and [C] = 0.3 M, which direction will the reaction proceed to reach equilibrium?

Which of the following is NOT a characteristic of a system at equilibrium?

A chemical equilibrium is established when:

For a reversible reaction at equilibrium, which of the following is true?

In a closed system at equilibrium, what happens to the concentrations of reactants and products over time?

Which factor does NOT affect the equilibrium position of a reversible reaction?