Cards in this deck
True or False? When explaining how increased concentration of a reactant affects an equilibrium system, it is correct to use collision theory.
What is dynamic equilibrium?
What happens to the position of equilibrium if the concentration of a reactant is increased?
Equilibrium can only be established in a .......... system, where no reactants or products can .......... .
True or False? Adding a catalyst to an equilibrium mixture shifts the position of equilibrium to the right, increasing the yield of products.
State Le Chatelier's Principle.
Increasing the temperature of an equilibrium mixture shifts the position of equilibrium in the .......... direction. Decreasing temperature shifts it in the .......... direction.
Why does increasing pressure shift the position of equilibrium toward the side with fewer moles of gas?
What is a reversible reaction?
True or False? When water is added to white anhydrous copper(II) sulfate, the colour change observed is irreversible.
Anhydrous cobalt(II) chloride is .......... . When water is added, it turns .......... . This change can be reversed by .......... .
Why can cobalt(II) chloride and copper(II) sulfate be used as chemical tests for water?
In the reaction CuSO4 + 5H2O ⇌ CuSO4.5H2O, the white anhydrous copper(II) sulfate turns .......... when it absorbs .......... of crystallisation.
What is water of crystallisation?
What is the difference between a hydrated and an anhydrous salt?
What is the Contact process?
State the sources of sulfur dioxide and oxygen used in the Contact process.
Balance the chemical equation for the Contact process: 2SO2 (g) + O2 (g) ⇌ .......... SO3 (g)
True or False? In the Contact Process, increasing the temperature would increase the yield of SO3.
Explain why a pressure of only about 2 atm is used in the Contact Process rather than a much higher pressure.
The catalyst used in the Contact Process is .......... . Removing the catalyst would decrease the rate of reaction but would not change the .......... of equilibrium.
Give one use of sulfuric acid produced by the Contact Process.
What is the Haber process?
Balance the chemical equation for the Haber proces: N2 (g) + .......... H2 (g) ⇌ .......... NH3 (g)
State the sources of nitrogen and hydrogen used as raw materials in the Haber Process.
True or False? In the Haber Process, increasing the temperature increases both the rate of reaction and the equilibrium yield of ammonia.
Explain why 200 atm is used in the Haber Process rather than a much higher pressure.
The catalyst used in the Haber Process is .......... , which speeds up the rate at which equilibrium is reached but does not change the .......... of equilibrium.
Give one use of ammonia produced by the Haber Process.