Which of the following statements is true about the reaction 2A -> B+C which is

ID: 946601 • Letter: W

Question

Which of the following statements is true about the reaction 2A -> B+C which is first order in A and first order overall

a)The rate of the reaction will decrease at higher concentrations of B and C

b)The rate of formation of B is the same as the rate of reaction of A

c) the time required for one half of A to react is directly proportional to the quantity of A

d) the rate of formation of C is twice the rate of reaction of A

e) the initial rate doubles with doubling of initial concentrations of A

The statements that are correct are,

a) Incorrect. Rate = K [A]. It is independent of B and C.

b) Incorrect. Rate of formation of B = (1/2) x Rate of reaction of A

c) Incorrect. Half Time (or Half life) = 0.693 / K. It is independent of [A]

d) Incorrect. Rate of formation of C = (1/2) x Rate of reaction of A

e) CORRECT. Rate = K [A]. If [A] is doubled, rate is doubled.

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