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For a reaction: H(2)+Cl(2)overset("hv")r...

For a reaction: `H_(2)+Cl_(2)overset("hv")rarr2HCl, " rate"=K`
Write the order and molecularity of this reaction.

Text Solution

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For the reaction, r = k , indicating that the rate is independent of the concentration of reactants. Thus , it is a zero order reaction. As the reaction involves two molecules of reactants , its molecularity is 2.
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