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6. True or false, the contact process is endothermic

  • False
  • True

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?

  • True
  • False

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