Chemical Equili...

When a reversible reaction is at equilibrium, one of its products' concentration is decreased. The equilibrium state

If k₁ and k₂ are the respective equilibrium constants for the reactions (I) and (II), where (I) is 2NO and (II) is NO, then

For PCl₅ (g) PCl₃ (g) + Cl₂ (g); H = 22 k. cals, the dissociation of PCl₅ will be more on

The Haber's process for the manufacture of ammonia is usually carried out at 450–500°C. If the temperature of 250°C was used instead of 450–500°C, then

Assertion: An increase in the volume of a system that results in a decrease in the total pressure will cause a shift to the side of the equilibrium with greater number of moles of the gas.
Reason: This counters the decrease in the total pressure.

Assertion: A net reaction can occur only if a system is not at equilibrium.
Reason: All reactions occur to reach a state of equilibrium.

What is the relation between K_p and K_c in the following reaction?

N₂(g) + 3H₂(g) 2NH₃(g)

For the reaction: H₂(g) + I₂(g) ⇌ 2HI(g), the equilibrium constants expressed in terms of concentration K_c and partial pressure K_p are related as

PCl₃ (g) + Cl₂ (g) PCl₅ (g) K_c (250°C) for this reaction is 26. The value of K_p at the same temperature is

Which of the following reactions will proceed in forward direction if the volume of the container is increased?

Which of the following changes will shift the given reaction towards the product?

l₂ (g) ⇌ 2l (g), (298 K) = +150 kJ

Two moles of PCl₅ are heated in a closed vessel of 2 L capacity. When the equilibrium is attained, 40% of it is found to be dissociated. What is K_c in mol/dm³?

The unit of Kc for the equilibrium reaction 2HIH₂ + I₂ is

In the reaction 3A + 2B 2C, the equilibrium constant K_c is given by

What is the equilibrium expression for the reaction P₄ (s) + 5O₂ (g) P₄O₁₀ (s)?

One mole of a compound AB reacts with one mole of a compound CD according to the equation AB + CD AD + CB. When equilibrium was established, it was found that 3/4 mol each of reactants AB and CD had been converted to AD and CB, respectively. There was no change in volume. The equilibrium constant for the reaction is

The equilibrium constant for the reaction 2NO₂ (g) 2NO (g) + O₂ (g) is 2 10^-6. The equilibrium constant for the reaction 4NO(g) + 2O₂ (g) 4NO₂ (g) at the same temperature would be

If = 46 V, then the equilibrium constant of the reaction Cu(s) + 2Ag⁺(aq) Cu²⁺(aq) + 2Ag(s) is given as

The equilibrium constant K_p for thermal dissociation of PCl₅ at 200°C is 1.6 atm. The pressure (in atm) at which it is 50% dissociated at the same temperature is

Which of the following has/have equilibrium constant as one?