The reaction :
`N_(2)O_(5)( "in" (C)Cl_(4) "solution") to2NO_(2)("same solution") +1//2O_(2)(g)` is of first order in `N_(2)O_(5)` with rate constant = `6.2 xx 10^(-4)s^(-1)`. What is the value of the rate of reaction when `[N_(2)O_(5)]` with rate constant = `6.2 xx 10^(-4)s^(-1)`. What is the rate of reaction when `N_(2)O_(5)=12.5 mol L^(-1)`?

Options

A. `5.15 xx 10^(-5) mol L^(-1)s^(-1)`
B. `6.35 xx 10^(-3) mol L^(-1)s^(-1)`
C. `7.75 xx 10^(-4)molL^(-1)s^(-1)`
D. `3.85 xx 10^(-4) mol L^(-1)s^(-1)`

Answer

C

Explanation

c) rate `=k xx [N_(2)O_(5)]`
`(6.2 xx 10^(-4) s^(-1)) xx (1.25 mol L^(1))`
`7.75 xx 10^(-4) mol L^(-1)s^(-1)`