Solve this plzzz...

Q. For general reaction X  Y, the plot of conc. of X vs time is given in the figure. What is the order of the reaction and what are the units of rate constant ?


(a) Zero, Mol L-1 s-1
(b) First, Mol L-1 S-1
(c) First s-1
(d) Zero, L mol -1 S-1

Dear student,
The concentration decreases linearly with time.
As per zero order reaction;
At = A0 - kt
where A0 is initial concentration and At is concentration at any time "t" and k is rate constant.
Clearly, the above graph is of zero order reaction and unit will be Mol L-1S-1
Hence the answer is (a)

Hope it helps
Regards

  • 1
First order reaction
Slope =-k
Unit s-1
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