www.ThinkITI.com

Home
MCQ
Search
Free Apps
Important
Study Groups
Contact Us
Policy

Home
MCQ
Objective Questions
GS
GS Set-1
Chemistry
Physical Chemistry
199

Physical Chemistry MCQ with Answers

199) In which of the following, the reaction proceeds towards completion?

K = 1

K = 10

K = 10²

K = 10³

Answer is:

K = 10³

Explanation:

More the value of K, more the reaction proceeds towards completion.

Physical Chemistry MCQ with Answers

For more MCQ's Click Here

200) At 1000 K, the K_p for the reaction of CO₂ (g) with excess of graphite to form CO (g) is 9 atm. Then the mole % of CO in the equilibrium mixture of gases is:

60%

25%

75%

20%

Answer is:

0.75

201) On addition of positive catalyst to a reaction system undergoing reversible reaction:

The point of equilibrium shifts

The equilibrium constant K_eq changes

Both rate constants K_f and K_b change

Both K_f and K_b change by same fraction

Answer is:

Both K_f and K_b change by same fraction

Explanation:

On addition of catalyst, K_eq does not change.

202) The equilibrium constant of a reaction is 20. At eqilibrium, the rate constant of forward reaction is 10. The rate constant for backward reaction is:

0.5

200

Answer is:

0.5

Explanation:

K_c = K_f⁄K_b

203) Molar concentration of 96 gm of O₂ contained in 2 litre vessel is:

16 mol⁄L

1.5 mol⁄L

4 mol⁄L

24 mol⁄L

Answer is:

1.5 mol⁄L

Explanation:

Molar concentration = Number of moles ⁄ Vol(L)

Physical Chemistry MCQ with Answers

For more MCQ's Click Here

199) In which of the following, the reaction proceeds towards completion?

K = 103

Physical Chemistry MCQ with Answers

Related Physical Chemistry MCQ with Answers

200) At 1000 K, the Kp for the reaction of CO2 (g) with excess of graphite to form CO (g) is 9 atm. Then the mole % of CO in the equilibrium mixture of gases is:

0.75

201) On addition of positive catalyst to a reaction system undergoing reversible reaction:

Both Kf and Kb change by same fraction

202) The equilibrium constant of a reaction is 20. At eqilibrium, the rate constant of forward reaction is 10. The rate constant for backward reaction is:

0.5

203) Molar concentration of 96 gm of O2 contained in 2 litre vessel is:

1.5 mol⁄L

Physical Chemistry MCQ with Answers

K = 10³

200) At 1000 K, the K_p for the reaction of CO₂ (g) with excess of graphite to form CO (g) is 9 atm. Then the mole % of CO in the equilibrium mixture of gases is:

Both K_f and K_b change by same fraction

203) Molar concentration of 96 gm of O₂ contained in 2 litre vessel is: