For the reaction , `2SO_(2) +O_(2) hArr 2SO_(3)`,
the rate of disappearance of `O_(2)` is `2xx10^(-4)"mol L"^(-1)s^(-1)`. The rate of appearance of `SO_(3)` is

Options

A. `2xx10^(4) "mol L"^(-1)s^(-1)`
B. `4xx10^(-4) "mol L"^(-1)s^(-1)`
C. `1xx10^(-4) "mol L"^(-1)s^(-1)`
D. `6xx10^(-4) "mol L"^(-1)s^(-1)`

Answer

B

Explanation

`(Delta[O_(2)])/(Deltaf)=2xx10^(-4)`
`([SO_(3)])/(Deltat)=2(Delta[O_(2)])/(Deltat)`
`=2xx2xx10^(-4)`
`=4xx10^(-4) " mol "1^(-1) s^(-1)`