If the volume of the vessel in which the reaction `2NO+O_2 rarr2NO_2` is occurring is diminished to 1/3 rd of its initial volume . The rate of the reaction will be increased by

Options

A. 3 times
B. 9 times
C. 27 times
D. 36 times

Answer

C

Explanation

rate `=k[NO]^(2)[O_(2)] = 3^(2) xx 2 = 27` times `[therefore c propto 1/v]`