For the reaction `O_(3(g)) +O_((g)) to 2O_(2(g)) ` , if the rate law expression is , rate `=k [O_3][O]` the molecularity and order of the reaction are respectively ______.

Options

A. 2 and 2
B. 2 and 1.33
C. 2 and 1
D. 1 and 2

Answer

A

Explanation

(a) Given reaction is
`O_(3)(g)+O(g)rarr2O_(2)(g)`
Also, rate law expression is given as rate
`=k[O_(3)][O]`From the reaction, it is clear that two molecules(one
`O_(3)` and one O) colloide to form
`O_(2)(g)`hence the molecularity is 2. From the rate law expression, sum of power of concentration of reactants
`1+1=2`.