Use collision theory to explain why increasing temperature increases the rate of reaction.
From Paper 10 (Chemistry), Higher
33 marks
Explain what is meant by dynamic equilibrium.
From Paper 10 (Chemistry), Higher
92 marks
60 cm³ of gas was collected in 30 s. Calculate the mean rate of reaction.
From Paper 10 (Chemistry), Higher
104 marks
N₂ + 3H₂ ⇌ 2NH₃ (forward reaction exothermic). Explain the effect on the yield of ammonia of increasing pressure and increasing temperature.
From Paper 10 (Chemistry), Higher
162 marks
45 cm³ of gas was collected in 25 s. Calculate the mean rate of reaction.
From Paper 10 (Chemistry), Higher
173 marks
Explain why the Haber process uses a temperature of about 450 °C.
Score 0 / 18 · 0 of 6 marked
This paper is written by Plasmo in the style of the OCR GCSE Combined Science exam. It is not a past paper and is not produced or endorsed by the exam board.