If n = overall order of a chemical reaction. a = initial concentration of reactant. t = time required to complete a definite fraction of the reaction. Then pick out the correct relationship ?
Correct answer: B. t ∝ 1/an - 1
- A. t ∝ 1/an
- B. t ∝ 1/an - 1
- C. t ∝ 1/an + 1
- D. t ∝ an
Explanation
For a fixed fractional conversion in an nth-order batch reaction, the time scales as the inverse of the initial concentration raised to n−1: t ∝ 1/a^(n−1). Option b is intended to represent this relation.
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