Question

What is order of reaction h2+cl2=2hcl?

Answer 1

See the explanation below..

Explanation:

H2+ Cl2 --------> 2HCl

The rate law can be concluded from this equation:
R = k {H2} {Cl2}
where: k is the rate constant, {H2} is the concentration of hydrogen gas and {Cl2} is the concentration of chlorine gas; all are to the power one as mentioned in the balanced equation.

So, the order would be:
1. First with respect to hydrogen gas.
2. First with respect to chlorine gas.
3. The overall order of the reaction is second.