Answer any seven questions of the following:
Under which condition the rate of reaction becomes equal to the specific reaction rate?
Write the expressions for the rate of reaction of
`PCl_5rarrPCl_3+Cl_2`

Explanation

Rate of reaction equal to the specific reaction rate (i.e. rate constant), when concentration of reactants is unity, i.e. For the reaction,
`PCl_5rarrPCl_3+Cl_2`
Rate (r ) = k `"[concentration]"^1`
Expression for rate of reaction of `PCl_5rarrPCl_3+Cl_2` is as follows :
Rate (r ) = `k[PCl_5)]^1` (`therefore` The given reaction is of first order)