Question

Consider the reaction A₂ + B → Product. If the concentration of A₂ and B are halved, the rate of the reaction decreases by a factor of 8. If the concentration of A is increased by a factor of 2.5, the rate increases by the factor of 2.5. What is the order of reaction? Write the rate law.

Answer 1

As the rate of the reaction becOmes two timees on doubling the concentartion of b so the reaction is first ordr wrt to b when both a and b is doubled then rate becomes eight times.as rxn is 1order art to b due to rate increases two times hence due to A rate increases four times which is 2^2 hence reaction is second order wrt to a

Rate law=(a^2)(b^1)

Answer 2

As the rate of the reaction becOmes two timees on doubling the concentartion of b so the reaction is first ordr wrt to b when both a and b is doubled then rate becomes eight times.as reaction is 1 order wrt to b due to rate increases two times hence due to A rate increases four times which is 2^2 hence reaction is second order wrt to a

Rate law=(a^2)(b^1)

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