The balanced reaction below reaches equilibrium at a certain temperature

CHEMISTRY · Single correct · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)

Problem

The balanced reaction below reaches equilibrium at a certain temperature. 2HI(g)+Br2(l)⇌2HBr(g)+I2(s)2\text{HI}(g)+\text{Br}_2(l) \rightleftharpoons 2\text{HBr}(g)+\text{I}_2(s) Which of the following expressions is the correct form of KcK_c for this equilibrium? (a) [HBr][HI]\dfrac{[\text{HBr}]}{[\text{HI}]} (b) [HI]2[HBr]2\dfrac{[\text{HI}]^{2}}{[\text{HBr}]^{2}} (c) [HBr]2[HI]2\dfrac{[\text{HBr}]^{2}}{[\text{HI}]^{2}} (d) [HBr]2[I2][HI]2[Br2]\dfrac{[\text{HBr}]^{2}[\text{I}_2]}{[\text{HI}]^{2}[\text{Br}_2]}

Related theory

Browse the problem library