Asked by aayushverma | 16th Mar, 2008, 07:43: PM
all chemical changes require energy to b initiated as for the initial breakage of bonds of reactants .
bt if energy released in a reaction is more then that required it is exothermic reaction n released energy is used to carry on the reaction nnet energy is released.
for endothermic reaction energy is supplied to initiate as well as carry on the reaction
Answered by | 17th Apr, 2008, 03:35: PM
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