Average rate of reaction for the following reaction, `2SO_(2)(g)+O_(2)(g)rarr2SO_(3)(g)` is written as

Options

A. `(Delta[SO_(2)])/(Deltat)`
B. `-(Delta[O_(2)])/(Deltat)`
C. `(1)/(2)(Delta[SO_(2)])/(Deltat)`
D. `(Delta[SO_(3)])/(Deltat)`

Answer

B

Explanation

(b) Average rate of reaction is defined as the speed with which the reactants are converted into products.
For reaction,
`2SO_(2)(g)+O_(2)(g)rarr2SO_(3)(g)`
`-(1)/(2)(Delta[SO_(2)])/(Delta_(2))=(Delta[O_(2)])/(
Deltat)=+1/2(Delta[SO_(3)])/(Deltat)`So, average rate of reaction is written as
`-(Delta[O_(2)])/(Deltat)`