Why we cannot determine the order of reaction from a balanced chemical reaction?
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1) Deciding the order of a reaction is not a completely theoretical concept. Actually, truely it's an experimental concept wherein you get different rates for different varying initial concentration of the reactants.
2) So, there are even some psuedo reactions , whose actual order is way different than the order that one may think of by seeing the sum of the stoichiometric coefficients of the reactants in the balanced chemical equation representing the reaction
3) For example,
2N2O5 ----> 4NO2 + O2
This is the decomposition reaction of nitrous oxide , which actually by equation, tells that the order should be 2 since the coefficient of N2O5 is 2.
However, after experimental data was obtained, it was observed that the reaction was actually following first order kinetics and hence, this reaction was actually a first order reaction .
Hope this helps you !! ^_^
#Dhruvsh
2) So, there are even some psuedo reactions , whose actual order is way different than the order that one may think of by seeing the sum of the stoichiometric coefficients of the reactants in the balanced chemical equation representing the reaction
3) For example,
2N2O5 ----> 4NO2 + O2
This is the decomposition reaction of nitrous oxide , which actually by equation, tells that the order should be 2 since the coefficient of N2O5 is 2.
However, after experimental data was obtained, it was observed that the reaction was actually following first order kinetics and hence, this reaction was actually a first order reaction .
Hope this helps you !! ^_^
#Dhruvsh
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