Interpretation:
The system that has reached the
Concept introduction:
When the

Answer to Problem 1STP
Correct answer:
D.
Explanation of Solution
Reason for correct option:
Because equilibrium attains only when the rate of forward reaction is equal to rate of reverse reactions which implies that the rates of forward and reverse reaction are not change with time.
Reasons for incorrect options:
A. This one is wrong description because during the forward reaction ate is change with time and products are formed.
B. This is also wrong because in equilibrium position rate of forward and reverse reaction are equal.
C. This is also wrong because there is no effect on the equilibrium position by changing the concentration.
Chapter 17 Solutions
Chemistry: Matter and Change
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