In the reaction , `ArarrB` concentration of A decreases from 0.35 (M) to 0.15 (M) in 30 min. Determine the average rate of reaction in the given interval considering the unit of time to be s .

Explanation

Average reaction -rate `(r)=-(Delta[A])/(Deltat)=(Delta[B])/(Deltat)`
Now, `Delta[A] = Delta[A]_(2)-Delta[A]_(1)=0.15(M)-0.35(M)=-0.20(M)`
and `Delta=30min=30xx60s=1800s`
`therefore-(Delta[A])/(Delta)=-((-0.20))/(1800)=1.111xx10^(-4)"mol"^(-1).s^(-1)`
`therefore` In the given interval , the average rate is `1.111x10^(4)"mol " .L ^(-1).s^(-1)`.