From Mock A · Paper 1: Inorganic and Physical Chemistry
4.24 marks
For N₂O₄(g) ⇌ 2NO₂(g), at equilibrium the total pressure is 200 kPa and the mole fraction of NO₂ is 0.400. Calculate Kp and give its units.
From Mock A · Paper 1: Inorganic and Physical Chemistry
4.32 marks
The forward reaction is endothermic. State and explain the effect of increasing the temperature on Kp.
From Mock A · Paper 3: Practical skills, all content and multiple choice
5.15 marks
Explain why the Haber process is run at about 450 °C and 200 atm with an iron catalyst, rather than the conditions that give the highest equilibrium yield.
From Mock A · Paper 3: Practical skills, all content and multiple choice
151 mark
What are the units of Kp for N₂(g) + 3H₂(g) ⇌ 2NH₃(g) with pressures in kPa?
From Mock B · Paper 1: Inorganic and Physical Chemistry
10.14 marks
N₂O₄(g) ⇌ 2NO₂(g). At equilibrium the total pressure is 200 kPa and the mole fraction of NO₂ is 0.40. Calculate Kp.
From Mock B · Paper 1: Inorganic and Physical Chemistry
10.22 marks
The forward reaction is endothermic. State and explain the effect of increasing temperature on Kp.
From Mock B · Paper 3: Practical skills, all content and multiple choice
201 mark
For a gas mixture at total pressure 300 kPa containing 2 mol A and 1 mol B, the partial pressure of A is
From Mock C · Paper 1: Inorganic and Physical Chemistry
10.14 marks
For H₂(g) + CO₂(g) ⇌ H₂O(g) + CO(g), equilibrium partial pressures are p(H₂) 30 kPa, p(CO₂) 30 kPa, p(H₂O) 20 kPa, p(CO) 20 kPa (data are illustrative, written for this paper). Calculate Kp and explain why it has no units.
From Mock C · Paper 3: Practical skills, all content and multiple choice
191 mark
Kp for 2NO₂ ⇌ N₂O₄ has units of
Score 0 / 24 · 0 of 9 marked
This paper is written by Plasmo in the style of the AQA A-Level Chemistry exam. It is not a past paper and is not produced or endorsed by the exam board.