2 Answers
Manish Shankar
·2014-06-08 09:23:10
t=0, V=V1
t=5, V=2V1/3
t=10, V=V2
c=lnV1
so we have
ln(V/V1)=-kt
ln(2/3)=-5k
ln(V2/V1)=-10k
ln(V2/V1)=2*ln(2/3)=ln(4/9)
V2/V1=4/9
Manish Shankar
·2014-06-06 22:57:28
\frac{dV}{dt}=-kV \Rightarrow \frac{dV}{V}=-kdt \Rightarrow lnV=-kt+c
Proceed from here
- Sahil Jain please solve it. I am not geeting the answerUpvote·0· Reply ·2014-06-08 07:57:29