The Equilibrium Constant, Kc - Part 2 Quiz | A-Level Chemistry OCR

Welcome to the Quiz!

This quiz contains 5 questions from a mix of 1 subtopics.

Select the correct units for K_c for the following reaction:

CH₃COCH₃ + HCN ⇌ CH₃C(CN)(OH)CH₃

mol^-2 dm⁶

mol^-1 dm³

mol dm^-3

mol² dm^-6

A_(g) + B_(g) ⇌ C_(g)

Initially there was 0.20 mol of A and 0.40 mol of B in the mixture for the reaction above. A and B reacted together to produce an equilbirium mixture containing 0.080 mol of C. The total volume of the mixture of 2.0 dm³.

Calculate the value of K_c. Give your answer to 2 significant figures.

4.2

mol^-1 dm³

What type of equilibria is the following reaction an example of?

N_2(g) + 3H_2(g) ⇌ 2NH_3(g)

heterogeneous

homogeneous

What states are included in the expression for K_c which describes a heterogeneous equilibrium?

(Select all that apply).

aqueous

gas

liquid

solid

What is the correct K_c expression for the following reaction?

C_(s) + H₂O_(g) ⇌ CO_(g) + H_2(g)

Kc=[H2O][CO][H2]

Kc=[C][CO][H2]

Kc=[C][H2O][CO]

Kc=[C][H2O][CO][H2]

Kc=[C][H2O][H2]