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Calculating the Equilibrium Constant (Kc) worksheets, questions and revision for A level Chemistry. All the revision you need in one place.
Calculate the concentration of each species at equilibrium and then Kc. a) What is the equilibrium concentration of I2? b) What effect would doubling the concentration of hydrogen have on the equilibrium position and Kc? c) What effect would increasing the temperature have on the equilibrium position and Kc?
X2(g) + 3Y2(g) 2XY3(g) at a temperature of 50°C, it is found that when equilibrium is reached that: [X2] = 0.37 M, [Y2] = 0.53 M and [XY3] = 0.090 M a) Write the equilibrium constant expression (Keq) b) Calculate the value of Keq at 50°C. Answer _____
Example 1: Calculate Kc for the esterification of ethanoic acid by ethanol given that for a 1dm3 of this homogeneous liquid equilibrium the amounts present are as shown below. [CH3CO2H] [C2H5OH] . 0.0255 x 0.0245 0.0457 . 0.06 mol. Find the equilibrium constant, Kc. At start: .
Test learner’s knowledge of equilibria with this question and answer sheet. The topics covered in this Starter for ten activity are: the equilibrium constant, Kc, calculations with K c, Le Châtelier and Kc, the equilibrium constant, Kp, the solubility product, Ksp. Match each of the reactions to the correct description; Explain your choice.
2.2. Calculations with K c Equilibria 2.2. 1. During the Contact process, SO 2 is converted into SO 3 in a reversible reaction; 2 SO 2 + O 2 ⇌ 2 SO 3 ΔH 197 kJ mol 1 The equilibrium was established at 1000 K and a small sample of the equilibrium mixture extracted.
Write an expression for the equilibrium constant (Kc) and derive its units in each of the following equilibria.
