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6. True or false, the contact process is endothermic
7. What temperatures give the highest yield of product?
- Low temperatures
- Room temperature
- High temperatures
- Medium temperatures
8. What pressure and temperature is used in the hydration of ethene to produce ethanol?
- High temperature, low pressure
- Low temperature, high pressure
- Low temperature, low pressure
- High temperature, high pressure
9. What is Le Chatelier's principle?
- If an external condition is changed then the equilibrium will shift to the right
- If an external condition is changed then more product will be produced
- If an external condition is changed then the equilibrium will shift to oppose the change
- If an external condition is changed then the equilibrium will stay the same
10. In the contact process, what temperature and pressure is used?
- High temperature, low pressure
- Low temperature, low pressure
- Low temperature, high pressure
- High temperature, high pressure
11. What type of pressure gives a higher yield of product?
- High pressure
- Low pressure
- Medium pressure
- No pressure
12. If the number of moles of gas is the same on both sides of the equation, what will happen to the equilibrium if the pressure is changed?
- There will be no change
- It will shift to the right
- It will move in the endothermic direction
- It will move to the left
13. In the production of methanol from CO what temperature and pressure is used?
- High temperature, low pressure
- Low temperature, high pressure
- High temperature, high pressure
- Low temperature, low pressure
14. In the Haber process, what pressure and temperature is used?
- High temperature, low pressure
- Low temperature, high pressure
- Low temperature, low pressure
- High temperature, high pressure
15. What is the problem with using low temperatures to get a higher yield?
- The rate of reaction will be too fast
- Too much product is produced
- There will be a slow rate in reaction
- It will be expensive
16. What does the term dynamic mean?
- Backward reactions are occuring
- Forward reactions are occuring
- Forward and backward reactions are occurring at the same time
- No reactions are occuring
17. Why doesn't a catalyst have any effect on the position of equilibrium?
- Because it makes the reaction more endothermic
- Because it speeds up the rate of both forward and backward reactions by the same amount
- Because it speeds up the rate of backward reactions only
- Because it speeds up the rate of forward reactions only
18. True of false, the Haber process is exothermic?
19. What effect does a catalyst have on the position of equilibrium?
- The equilibrium will shift to the left
- The equilibrium will shift in the endothermic direction
- No effect
- The equilibrium will shift to the right
20. What will happen to the equilibrium if the pressure is increased?
- It will shift towards the side with fewer moles of gas
- It will shift towards the side with more moles of gas
- There will be no change