Write the equilibrium-constant expression for the reaction shown in terms of [A], [B], [C], and [D]. 3A(g)+B(g)↽−−⇀2C(g)+2D(g) 3 A ( g ) + B ( g ) ⁢ ↽ − − ⇀ ⁢ 2 C ( g ) + 2 D ( g )

Answer 1

The equilibrium expression (K) is the product of the products each raised to a power equal to their coefficient divided by the product of the reactants each raised to a power equal to their coefficient. Solids, and liquids are excluded from such an expression.

3A(g) + B(g) <==> 2C(g) + 2D(g)

K = [C]²[D]² / [A]³[B]