Question

The concentration of a solution having concen-
tration 0.24 M is reduced to 0.12 M in 10 hours
and 0.06 M in 20 hours. What is the rate con-
stant of the reaction?​

Answer 1

Answer:

k=2.303/t *log[R]/[R1] where t=10 hours [R]=0.24 and [R1]=0.12

ALSO,

k=2.303/t1 *log[R]/[R2] where t=20 hours [R]=0.24 and [R1]=0.6

on adding the above equations,

2k=0.0693203+0.069377

k=0.1386973 or 0.14