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The following results were obtained during kinetic studies of the reaction; 2A + B → Products Experiment I: [A] in mol L−1 = 0.1, [B] in mol L−1 = 0.2, Initial Rate of reaction (in mol L−1 min−1) = 6.93 × 10−3 Experiment II: [A] in mol L−1 = 0.1, [B] in mol L−1 = 0.25, Initial Rate of reaction (in mol L−1 min−1) = 6.93 × 10−3 Experiment III: [A] in mol L−1 = 0.2, [B] in mol L−1 = 0.3, Initial Rate of reaction (in mol L−1 min−1) = 1.386 × 10−2 The time (in minutes) required to consume half of A is
- 5
- 10
- 1
- 100
Correct answer: 5
Solution
The correct option is 5 minutes because the initial rate of reaction indicates how quickly reactants are consumed, and given the concentration of A and the rate, it can be calculated that half of A will be consumed in this time frame.
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