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(B) The reaction is $RCl + H_2O \longrightarrow ROH + HCl$. Since water is present in large excess,its concentration remains effectively constant duri

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Molecularity is $2$ but order of reaction is $1$

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(B) The reaction is $RCl + H_2O \longrightarrow ROH + HCl$. Since water is present in large excess,its concentration remains effectively constant during the reaction. Therefore,the rate law is given by $Rate = k[RCl]^1[H_2O]^0 = k'[RCl]^1$. The order of the reaction is the sum of the powers of the concentration terms in the rate law,which is $1 + 0 = 1$. The molecularity is the number of reacting species taking part in an elementary step,which is $2$ ($RCl$ and $H_2O$). Thus,molecularity is $2$ and order is $1$.

In the hydrolysis of an organic chloride in the presence of a large excess of water,the reaction is $RCl + H_2O \longrightarrow ROH + HCl$. Determine the molecularity and order of the reaction.

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