In the reaction `A +2B rarr C +2O` the initial rate `(-d[A])/(dt)` at `t=0`was found to the `2.6 xx 10^(-2) "M sec"^(-1)`. What is the value of `(-d[B])/(dt)` at `t=0` in `ms^(-1)` ?

Options

A. `2.6 xx 10^(-2)`
B. `5.2 xx 10^(-2)`
C. `1.0 xx 10^(-1)`
D. `6.5 xx 10^(-3)`

Answer

B

Explanation

`(1)/(2)xx(-d[B])/(dt)=(-d[A])/(dt)`
Rate with respect to B
`=2.6 xx 10^(-2) M sec^(-1) xx2`
`=5.2 xx 10^(-3) M sec^(-1)`.