The starter and exit quiz of the lesson “Factors affecting equilibrium”, from the unit “Industrial chemistry” (Year 11 Science) by Oak National Academy.
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Oak National Academy
12 questions
Which of the following statements for a dynamic equilibrium are correct?
When ammonia is removed during the Haber process, which of the following changes occur to the dynamic equilibrium?
Match the following key terms to their definition.
The Haber process requires iron and the Contact process requires vanadium. These substances speed up the reactions without being used up or changed. Different reactions require different ___.
Which of the following graphs would be an appropriate representation of rate of reaction vs. time, for a dynamic equilibrium?
Many reactions in industrial chemistry are reversible reactions that reach equilibrium. 100% of the desired product can never be achieved. Which of the following issues may be encountered?
One mole of any gas occupies the same ___ under the same temperature and pressure conditions.
Changing the number of particles of gas in a fixed volume will change the conditions. Adding gaseous matter changes the ___ as there are more particles colliding with the walls of the container.
Consider the reaction CO(g) + 2H₂(g) ⇌ CH₃OH(g).What happens when the pressure is increased?
Consider: Fe₂O₃(s) + 3CO(g) →2Fe(l) + 3CO₂(g).It would be easy to let the by–product escape, to shift the equilibrium to get the desired product, Fe. Why is this undesirable?
Why does temperature affect the equilibrium position?
Match the following key terms to their definitions.
