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Question 3

The production of methanol from carbon monoxide and hydrogen is represented by the following reversible reaction:

CO(g)+2H2(g)⇌CH3OH(g) \text{CO}(\text{g}) + 2\text{H}_2(\text{g}) \rightleftharpoons \text{CH}_3\text{OH}(\text{g}) CO(g)+2H2​(g)⇌CH3​OH(g)

At a certain temperature, an equilibrium mixture contains 0.45 mol of CO\text{CO}CO, 1.20 mol of H2\text{H}_2H2​, and 0.75 mol of CH3OH\text{CH}_3\text{OH}CH3​OH. The total pressure of the system is 16.0 MPa.

What is the partial pressure of H2\text{H}_2H2​?

A

3.0 MPa3.0\text{ MPa}3.0 MPa

B

4.0 MPa4.0\text{ MPa}4.0 MPa

C

5.0 MPa5.0\text{ MPa}5.0 MPa

D

8.0 MPa8.0\text{ MPa}8.0 MPa

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How far? Questions

  1. A Level
  2. /Chemistry
  3. /How far?

16 exam-style questions on OCR A A Level Chemistry How far?. Each one has a worked solution and a mark scheme showing where the marks go.

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