The rate of a reaction is proportional to [A]^3. By what factor does the rate change if [A] is multiplied by 3?
Answer and explanation
Correct answer: D. 27
- Step 1: Rate ∝ [A]^n, so the factor is (3)^3. Step 2. (3)^3 = 27. Answer: 27. Why not the others: 9 is what you get if you multiply the factor by the order. 6 is what you get if you add the factor and the order. 81 is what you get if you use the wrong order.
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