In the reaction,P + Q → R + Sthe time taken for 75% reaction of P is

1.	In the reaction,P + Q → R + Sthe time taken for 75% reaction of P is twice the time taken for 50% reaction of P. The concentration of Q varies with reaction time as shown in the figure. The overall order of the reaction is(A) 2 (B) 3 (C) 0 (D) 1
Answer» (D) 1 Overall order of reaction can be decided by the data given t_75% = 2t_50% ∴ It is a first order reaction with respect to P. From graph [Q] is linearly decreasing with time, i.e. order of reaction with respect to Q is zero and the rate expression is r = k [P]¹ [Q]⁰ .

In the reaction,P + Q → R + Sthe time taken for 75% reaction of P is twice the time taken for 50% reaction of P. The concentration of Q varies with reaction time as shown in the figure. The overall order of the reaction is(A) 2 (B) 3 (C) 0 (D) 1

Answer»

(D) 1

Overall order of reaction can be decided by the data given t_75% = 2t_50%

∴ It is a first order reaction with respect to P.

From graph [Q] is linearly decreasing with time, i.e. order of reaction with respect to Q is zero and the rate expression is r = k [P]¹ [Q]⁰ .

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In the reaction,P + Q → R + Sthe time taken for 75% reaction of P is twice the time taken for 50% reaction of P. The concentration of Q varies with reaction time as shown in the figure. The overall order of the reaction is(A) 2 (B) 3 (C) 0 (D) 1

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