At 550 K , the K c for the following reaction is 10 4 mol − 1 L X(g) + Y(g) ⇌ Z(g) At equilibrium, it was observed that X = 1 2 Y = 1 2 Z What is the value of Z in mol L − 1 at equilibrium?

Step-by-step solution

X(g)   +   Y(g) ⇌ Z(g) K c = Z X Y or 10 4 = Z X Y ∴ Z = 10 4 X Y = 10 4 × 1 2 [Z][Z] (Given, [X] = 1 2 [Y] = 1 2 [Z] ) ∴ [Z] = 2 × 10 − 4 mol L − 1