Practice Industrial Processes (5.1) - Equilibrium - IB 10 Sciences (Group 4) – Chemistry

Practice: Industrial Processes

Lesson 5.1Equilibrium

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10 questions

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6 sample questions

Question 1.
What is equilibrium in the context of chemical reactions?
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Think about equal rates of change.
Question 2.
What does a large value of K indicate?
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Consider what happens when products dominate.
3Question 3.
What happens to a system at equilibrium when the concentration of reactants is increased?
- It stays the same
- It shifts to produce more products
- It shifts to produce more reactants
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Think about how the system reacts to new components.
4Question 4.
True or False: Catalysts affect the position of equilibrium.
- True
- False
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What role does a catalyst play?
Question 5.
Explain the effect of decreasing the pressure on the equilibrium of the reaction $2SO_2(g) + O_2(g) \rightleftharpoons 2SO_3(g)$ . How would you calculate the new concentrations if you know the original equilibrium concentrations?
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Consider which side has more molecules and apply the equilibrium constant.
Question 6.
For an endothermic reaction with an equilibrium constant of 0.2, predict the shift if the temperature is increased. How would you determine the new K?
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What does changing temperature do to K for endothermic reactions?

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