DP Chemistry (last assessment 2024)

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Question 21M.2.hl.TZ1.c(i)

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.2.hl.TZ1.c(i)
Level hl Paper 2 Time zone TZ1
Command term Determine Question number c(i) Adapted from N/A
c(i).
[Maximum mark: 1]
21M.2.hl.TZ1.c(i)

Hydrogen peroxide can react with methane and oxygen to form methanol. This reaction can occur below 50°C if a gold nanoparticle catalyst is used.

Methanol is usually manufactured from methane in a two-stage process.

CH4 (g) + H2O (g) ⇌ CO (g) + 3H2 (g)
CO (g) + 2H2 (g) ⇌ CH3OH (l)

Determine the overall equation for the production of methanol.

[1]

Markscheme

CH4(g) + H2O(g) ⇌ CH3OH(l) + H2(g) ✔


Accept arrow instead of equilibrium sign.

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