question_answer 81)

  For a general reaction A ® B, plot of concentration of A vs time is given in figure. Answer the following questions on the basis of this graph. (i) What is the order of the reaction? (ii) What is the slope of the curve? (iii) What are the units of rate constant?  

Answer:

                  (i) For A ® B the given graph shows a zero order reaction. Mathematically represented as                                       Which is equation of straight line. Hence, reaction is a zero order. (ii) Slope = - k (iii) Unit of zero order reaction is mole