In which of the following reactions, the equilibrium remains unaffected on addition of small amount of argon at constant volume?

(i) H₂ (g) + I₂ (g) ⇌ 2HI (g)

(ii) PCl₅ (g) ⇌  PCl₃ (g) + Cl₂ (g)

(iii) N₂ (g) + 3H₂ (g) ⇌
2NH₃ (g)

(iv) The equilibrium will remain unaffected in all the three cases.

pH for 0.01 M NaOH solution is

K_p for the given reaction is (36 × 10^–2atm^–1) Find out K_c (M^–1) (nearest integer).

(2NO₂ N₂O₄)

(R=0.0821 atm. L/mol. K)

(T = 300K)

A(g) ->B(g) + $\frac{1}{2}$ <!-- [if gte mso 9]><xml> </xml><![endif]-->C(g)

In the about reaction, the correct relation between K_p, a and equilibrium pressure (p) is

Which of the following equilibrium will shift in forward direction on applying pressure?

The ionization constant of HCN is 4.5 × 10^–10 at 298 K. Hydrolysis constant of sodium cyanide is