Question

For the reaction h2 + cl2 gives hcl what does what is the order and molecularity of the reaction

Answer 1

Hey mate here's your answer

(i) lt is a zero ordei reaction, molecularity = 2 (Bimolecular reaction)

(ii) Units of k = mol L-1 s-1

Answer 2

The order is 2 and molecularity of the given reaction is 2.

Explanation:

Molecularity is defined as the number of total molecules reacting in a chemical reaction. This means that it is the sum of stoichiometric coefficients of reactants in this elementary reaction.

Whereas order of a chemical reaction is defined as the the power dependence of the rate on the concentration of each reactant.

For example, $H_{2} + Cl_{2} \rightarrow 2HCl$

Hence, molecularity of this reaction is 1 + 1 = 2 as there are two reactant molecules.

And, order of this reaction is as follows.

                Rate = $k[H_{2}][Cl_{2}]$

Second order reaction (1 + 1 = 2).

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