Respuesta :
Answer:
Second step of the mechanism is slow step.
Explanation:
The given chemical reaction is as follows
[tex]Cl_{2}+H_{2}S\rightarrow 2HCl+S[/tex]
The mechanism of the reaction is as follows.
[tex]Cl_{2}\rightarrow 2Cl[/tex]
[tex]Cl+H_{2}S\rightarrow HCl+HS[/tex]
[tex]Cl+HS\rightarrow HCl+S[/tex]
The rate of the reaction.
[tex]rate=k[Cl_{2}]^\frac{1}{2}[H_{2}S][/tex]
Therefore, Step -2 must be slow.
Second step of the mechanism is slow step.
B. Only 2
Rate of reaction:
It is the speed at which a chemical reaction takes place, defined as proportional to the increase in the concentration of a product per unit time and to the decrease in the concentration of a reactant per unit time.
Chemical reaction:
[tex]Cl_2 + H_2S --> 2 HCl + S[/tex]
The reaction mechanism is as follows.
[tex]Cl_2-->2Cl\\\\Cl+H_2S--->HCl+HS\\\\Cl+HS-->HCl+S[/tex]
Second step is the slowest step, thus the rate determining step.
Therefore, rate of reaction can be represented as:
[tex]\text{Rate}= k[Cl_2]^{(1/2)}[H_2S][/tex]
Thus, option B is correct.
Find more information about Rate of reaction here:
brainly.com/question/24795637
