Question

For the reaction, `R rarr P`, the concentration of a reactant changes fro 0.03 M to 0.02 in 25 min. Calculate the average rate of reaction using units of time both in minutes an second.

Answer 1

For the reaction `R rarr P`
Average rate of reaction `=("Change in concentration of reactant/product")/("Time taken")`
`=(-Delta[R])/(Delta t)=-([R_(2)]-[R_(1)])/(t_(2)-t_(1))`
`=((0.02-0.03)M)/((25xx60)s)`
`=((-0.01)M)/((1500)s)`
`=6.66xx10^(-6)Ms^(-1)`
`=6.66xx10^(-6)" mol L"^(-1)s^(-1)`