Chemical Equilibrium ( Chapter Test- Non Medical) - Class 12 MCQ

The equilibrium constant of the reaction, 

is 1.60. If 0.4 mol of each is H₂ and CO₂ are enclosed in
a 1.0 litre vessel, the equilibrium concentration of H₂O(g) will be

Consider the reactions

The addition of an inert gas at constant volume

Acetic acid undergoes dimerisation, when dissolved in benzene

Molecular mass of acetic acid is found 120. Which among the following relation is correct ?

K_a for the acid HA is 1 x 10^–6. The value of K for the reaction,

For an ideal-gas reaction, 2A + B ⇔C +D , the value of K_p will be

For the reaction,

AB is 33% dissociated at a total pressure of P. Therefore, P is related to Kp by one of the following options

Partial pressure of O₂ in the reaction

 is

Consider the reaction

What will be the concentration of HI at equilibrium if one mole each of H₂,I₂ and HI are together taken in one litre flask and allowed to react ?

Equilibrium is likely to shift from left to the right of a chemical equation A ⇔ B when

3.1 mole of FeCl₃ and 3.2 mole of NH₄SCN are added to one litre of water. At equilibrium, 3.0 mol of FeSCN²⁺ are formed. The equilibrium constant K_c of the reaction

will be

For the reaction,

K_p = 63 atm at 100 K. If at equilibrium, , then the total pressure of the gases att equilibrium is

For a physical equilibrium  which of the following is true ?

The K_p/K_c ratio for the reaction

 at 127⁰C is

For the equilibrium

K_c = 1.0 x 10^–5. If the equilibrium concentration of H₂ and Cl₂ is 1.2 x 10^–3 M and 1.2 x 10^–4 M respectively then the concentration of HCl is

When 20 g of CaCO₃ is put into a 10 L flask and heated to 1000 K, 40% of CaCO₃ remains undissociated at equilibrium. Calculate the value of K_p for the reaction

Ammonium carbamate when heated to 200⁰C gives a mixture of NH₃ and CO₂ vapours with a density of 16.0. What is the degree of dissociation of ammonium carbamate ?

The value of ΔU⁰ for the reaction

for which and
T = 300 K, is