A chemical reaction A → B is said to be in equilibrium when:
Correct answer: C. Rate of transformation of A to B is equal to B to A
- A. Conversion of A to B is 50% complete
- B. 50% reactant has been changed to B
- C. Rate of transformation of A to B is equal to B to A
- D. Complete conversion of A to B has taken place
Explanation
When a chemical reaction is in equilibrium, it means that the rate at which A transforms into B is equal to the rate at which B transforms back into A. It's like a balanced dance where the number of people moving forward and backward is the same, creating a steady state.
Last updated
About Reversible Reactions
A reversible reaction proceeds in both forward and backward directions, so reactants and products continue changing until dynamic equilibrium is established. The topic covers the meaning of equilibrium, the equality of forward and reverse rates, and how concentration, pressure and temperature disturb equilibrium, which is separate from the rate at which equilibrium is reached.
Practise Chemical Equilibrium
625 free Chemical Equilibrium MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A chemical system is said to be in dynamic equilibrium when
A reaction with a tendency to occur in both forward and backward directions simultaneously is termed as
A very large value of the equilibrium constant Kc indicates that
A very small value of Kc depicts:
All of the following are applications of Kc EXCEPT: