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For a general reaction A\rightarrow B, plot of concentration of A vs time is given in Fig. 4.3. Answer the following question based on this graph.

(i) What is the order of the reaction?

(ii) What is the slope of the curve?

(iii) What are the units of the rate constant?

Answers (1)

(i) The reaction is of zero order.

      (ii) [R]=[R]_{0}-kt

Thus, the slope of the curve is -k

(iii) \frac{molL^{-1}}{s}=k[A]^{0}\; or\; k=molL^{-1}s^{-1}

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