From Paper 2: Advanced Organic and Physical Chemistry
104 marks
Explain, using collision theory, why increasing the concentration and increasing the temperature both increase the rate of reaction, but only temperature changes the rate constant.
From Paper 3: General and Practical Principles in Chemistry
4(a)5 marks
Describe how a colorimeter could be used to determine the order of reaction with respect to iodine in the acid-catalysed iodination of propanone.
From Paper 3: General and Practical Principles in Chemistry
5(a)6 marks
Methanol is made from CO and H₂: CO(g) + 2H₂(g) ⇌ CH₃OH(g), ΔH = −91 kJ mol⁻¹. Discuss the choice of conditions (about 250 °C, 50–100 atm, copper-based catalyst) in terms of yield, rate, cost and safety.
Score 0 / 15 · 0 of 3 marked
This paper is written by Plasmo in the style of the Edexcel A-Level Chemistry exam. It is not a past paper and is not produced or endorsed by the exam board.
Kinetics I Exam Questions: Edexcel A-Level Chemistry | Plasmo