Short Answer Type(a) Show graphically how the rate of first order reaction vary with only one reactant depends concentration of reactant.
(b) Give one example of first order reaction.
Long Answer Type(i) Define specific reaction rate.
(ii) Define Half-life period of a chemical reaction. Also obtain the expression for half-life period.
Or
Derive the general for of the expression for the half-life of a first order reaction.
Short Answer TypeFlash photolysis: When we pass a powerful flash of short duration or laser beam, through the reaction mixture to initiate a reaction the atoms, ions or free radicals are formed.
These atoms, ions or free radicals formed can be identified by passing a second, Flash of light through the mixture immediately after the first flash.
For this the absorption spectrum of the mixture is monitored continuously at small regular intervals after first flash and the changes in the spectrum with time indicate the various processes occurring in the system.
It can also be studied by observing some other property like electrical conductance or magnetic property of the reaction mixture.
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