Chemical reaction can be influenced by pressure or temperature. Nuclear reaction is independent of such factors. During such reactions there is low energy change. Energy changes accompanying nuclear reactions are relatively higher and larger.
An increase in temperature typically increases the rate of reaction. An increase in temperature will raise the average kinetic energy of the reactant molecules. Therefore, a greater proportion of molecules will have the minimum energy necessary for an effective collision.
(2) Different isotopes of an element normally behave similarly in chemical reactions. The nuclear chemistry of different isotopes vary greatly from each other. (3) Rates of chemical reactions are influenced by temperature and catalysts. Rates of nuclear reactions are unaffected by such factors.
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