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Worksheet 38 . Topic 9
Set D: Le Chatelier's Principle: Objective: To test your ability to determine stress that will
Determining stress. cause a certain change to an equilibrium reaction
Below, equilibrium reaction equation and different changes to the reaction are given.
You are to determine which stress or stresses to the reaction can cause the given change.
Base your choice of stresses to question 33 - 34 on the equilibrium equation 5 below.
Equation 5: 3H2(g) + N2 (g) < ----------- > 2NH3(g) + heat
33. Change to reaction (result of stress) : A decrease in concentration of N2.
(Put a in [ ] next to each stress that will cause the concentration of N2 to decrease)
[ ]Increasing concentration of H2 [ ]Adding heat (increasing temperature)
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[ ]Decreasing concentration of H2 [ ]Removing heat (decreasing temperature)
[ ]Increasing pressure (decreasing volume)
[ ]Increasing concentration of NH3
[ ]Decreasing concentration of NH3 [ ]Decreasing pressure (increasing volume)
[ ] Adding catalyst
34. Change to reaction (result of stress) : An increase in concentration of NH3
(Put a in [ ] next to each stress that will cause the concentration of NH3 to increase)
[ ]Increasing concentration of H2 [ ] Adding heat (increasing temperature)
[ ]Decreasing concentration of H2 [ ] Removing heat (decreasing temperature)
[ ]Increasing concentration of N2
[ ]Increasing pressure (decreasing volume)
[ ]Decreasing concentration of N2 [ ]Decreasing pressure (increasing volume)
[ ] Adding catalyst
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Base your choice of stresses to question 35 - 36 on the equilibrium equation 6 below.
Equation 6: SO2(g) + NO2(g) < ======= > SO3(g) + NO(g) + heat
35. Change to reaction (result of stress) : A decrease in the reverse reaction Need help? Study Book Pg 219 Set 44
(Put a in [ ] next to each stress that will cause a decrease in the reverse reaction
[ ]Increasing concentration of SO2 [ ]Increasing concentration of NO
[ ]Decreasing concentration of NO
[ ]Decreasing concentration of SO2
[ ]Increasing concentration of NO2 [ ]Adding heat (increasing temperature)
[ ]Decreasing concentration of NO2 [ ]Removing heat (decreasing temperature)
[ ]Increasing concentration of SO3 [ ]Increasing pressure (decreasing volume)
[ ]Decreasing pressure (increasing volume)
[ ]Decreasing concentration of SO3
[ ] Adding catalyst
36. Change to reaction (result of stress) : Reaction shift to the right
(Put a in [ ] next to each stress that will cause the reaction to shift to the right
[ ]Increasing concentration of SO2
[ ]Increasing concentration of NO
[ ]Decreasing concentration of SO2 [ ]Decreasing concentration of NO
[ ]Increasing concentration of NO2 [ ]Adding heat (increasing temperature)
[ ]Decreasing concentration of NO2 [ ]Removing heat (decreasing temperature)
[ ]Increasing concentration of SO3 [ ]Increasing pressure (decreasing volume)
[ ]Decreasing pressure (increasing volume)
[ ]Decreasing concentration of SO3
[ ] Adding catalyst
82 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
Set D: Le Chatelier's Principle: Objective: To test your ability to determine stress that will
Determining stress. cause a certain change to an equilibrium reaction
Below, equilibrium reaction equation and different changes to the reaction are given.
You are to determine which stress or stresses to the reaction can cause the given change.
Base your choice of stresses to question 33 - 34 on the equilibrium equation 5 below.
Equation 5: 3H2(g) + N2 (g) < ----------- > 2NH3(g) + heat
33. Change to reaction (result of stress) : A decrease in concentration of N2.
(Put a in [ ] next to each stress that will cause the concentration of N2 to decrease)
[ ]Increasing concentration of H2 [ ]Adding heat (increasing temperature)
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[ ]Decreasing concentration of H2 [ ]Removing heat (decreasing temperature)
[ ]Increasing pressure (decreasing volume)
[ ]Increasing concentration of NH3
[ ]Decreasing concentration of NH3 [ ]Decreasing pressure (increasing volume)
[ ] Adding catalyst
34. Change to reaction (result of stress) : An increase in concentration of NH3
(Put a in [ ] next to each stress that will cause the concentration of NH3 to increase)
[ ]Increasing concentration of H2 [ ] Adding heat (increasing temperature)
[ ]Decreasing concentration of H2 [ ] Removing heat (decreasing temperature)
[ ]Increasing concentration of N2
[ ]Increasing pressure (decreasing volume)
[ ]Decreasing concentration of N2 [ ]Decreasing pressure (increasing volume)
[ ] Adding catalyst
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Base your choice of stresses to question 35 - 36 on the equilibrium equation 6 below.
Equation 6: SO2(g) + NO2(g) < ======= > SO3(g) + NO(g) + heat
35. Change to reaction (result of stress) : A decrease in the reverse reaction Need help? Study Book Pg 219 Set 44
(Put a in [ ] next to each stress that will cause a decrease in the reverse reaction
[ ]Increasing concentration of SO2 [ ]Increasing concentration of NO
[ ]Decreasing concentration of NO
[ ]Decreasing concentration of SO2
[ ]Increasing concentration of NO2 [ ]Adding heat (increasing temperature)
[ ]Decreasing concentration of NO2 [ ]Removing heat (decreasing temperature)
[ ]Increasing concentration of SO3 [ ]Increasing pressure (decreasing volume)
[ ]Decreasing pressure (increasing volume)
[ ]Decreasing concentration of SO3
[ ] Adding catalyst
36. Change to reaction (result of stress) : Reaction shift to the right
(Put a in [ ] next to each stress that will cause the reaction to shift to the right
[ ]Increasing concentration of SO2
[ ]Increasing concentration of NO
[ ]Decreasing concentration of SO2 [ ]Decreasing concentration of NO
[ ]Increasing concentration of NO2 [ ]Adding heat (increasing temperature)
[ ]Decreasing concentration of NO2 [ ]Removing heat (decreasing temperature)
[ ]Increasing concentration of SO3 [ ]Increasing pressure (decreasing volume)
[ ]Decreasing pressure (increasing volume)
[ ]Decreasing concentration of SO3
[ ] Adding catalyst
82 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
