the reaction shifts left or toward the reactants when hcl is added. which substance(s) increase in…

the reaction shifts left or toward the reactants when hcl is added. which substance(s) increase in concentration during the shift? h₂(g) + cl₂(g) ⇌ 2hcl(g) + 184.6 j hcl h₂ and cl₂

the reaction shifts left or toward the reactants when hcl is added. which substance(s) increase in concentration during the shift? h₂(g) + cl₂(g) ⇌ 2hcl(g) + 184.6 j hcl h₂ and cl₂

Answer

Explanation:

Step1: Understand Le - Chatelier's principle

When a stress is applied to a system at equilibrium, the system will shift to relieve the stress.

Step2: Analyze the addition of HCl

Adding HCl increases the concentration of products. The reaction $H_2(g)+Cl_2(g)\rightleftharpoons 2HCl(g)$ will shift left to consume the added HCl.

Step3: Determine concentration changes

As the reaction shifts left, the concentrations of reactants $H_2$ and $Cl_2$ increase.

Answer:

$H_2$ and $Cl_2$