Self assessment
Question 1 of 4
The shift reaction is one of the reactions used to produce hydrogen for use in the Haber process:
CO(g) + H2O(g) CO2(g) + H2(g) ΔH = –42 kJ mol–1
What conditions will move the equilibrium position in favour of the production of hydrogen?
A
Low temperature.
B
High temperature.
C
Using a catalyst.
D
High pressure.
What is the main reason that catalysts are often used in the form of small pellets?
A
To make them easier to handle.
B
Because small pellets are cheaper to make than large lumps.
C
To maximise the surface area of the catalyst.
D
So that it is less easily poisoned.
What might be the purpose of a heat exchanger used in an industrial chemical process? You can select more than one answer.
A
To cool down gases emerging from an exothermic reaction in the reaction chamber.
B
To heat gases before they enter the reaction chamber.
C
To cool gases before they enter the reaction chamber.
D
To provide hot water or steam for use elsewhere in the chemical plant.
What strategies are likely to give students a feel for the scale and complexity of a chemical industrial manufacturing site? You can choose one or more than one answer.
A
Arranging for students to visit a chemical plant.
B
Giving students carefully structured questions based on a video of a chemical plant.
C
Arrange for students to have an opportunity to pose questions to a visiting speaker who works at a chemical plant.
D
Asking students to look at The Essential Chemical Industry resource.