In the equilibrium constant expression Kc, what is the unit for Kc if the reacti

In the equilibrium constant expression Kc, what is the unit for Kc if the reaction is A(g) + B(g) ⇌ C(g)?

In the equilibrium constant expression Kc, what is the unit for Kc if the reaction is A(g) + B(g) ⇌ C(g)?

Step 1: Identify the reaction: A(g) + B(g) ⇌ C(g).
Step 2: Write the expression for the equilibrium constant Kc: Kc = [C] / ([A] * [B]).
Step 3: Understand that [A], [B], and [C] represent the concentrations of the gases A, B, and C, respectively.
Step 4: Note that concentrations are measured in moles per liter (mol/L).
Step 5: Substitute the units into the Kc expression: Kc = (mol/L) / ((mol/L) * (mol/L)).
Step 6: Simplify the units: Kc = (mol/L) / (mol^2/L^2) = (mol/L) * (L^2/mol^2) = L/mol.
Step 7: Realize that the units cancel out, leading to a dimensionless quantity.
Step 8: Conclude that Kc is dimensionless.

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