(a)Mention the integrated rate equation for a zero order reaction
(b)Give any two differences between order and molecularity of reaction

Explanation

Consider a zero order reaction
`R to P`
Rate `=K[R]^(0)`
Rate=`K[R]^(0)`
Rate = `K xx 1` where K - rate constant or velocity const Rate =- `d[R]//dt`
`-d[R]//dt= k implies d[R]=-Kdt`
`int d[R] =-Kint dt`
`[R] = K+1`
I-integration constant
To find I, when t=0, [R] = [R_(0)]`
`[R_(0)]=-K xx 0+1`
`I=[R_(0)]`
Substituting in eq. (1)
`[R]=Kt+[R_(0)]`
`K=[R_(0)]-([R])/(t)` (b)