What is Le Chatelier's principle and how is it applied to find the equilibrium constant expression for the reaction C(s) + 2S(g) <=> CS2(g)?

6.1 Le Chatelier's principle states that if a change of condition (such as temperature, pressure, or concentration of reactants) is applied to a system in equilibrium, the system will shift in a direction that relieves the stress and establishes a new equilibrium.

6.2

Step 1: Write the equilibrium constant expression for the given reaction.
The reaction is $\text{C(s)} + \text{2S(g)} \rightleftharpoons \text{CS}_2\text{(g)}$.
Since $\text{C(s)}$ is a solid, it is not included in the $K_c$ expression.

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