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This quiz contains 14 questions from a mix of 1 subtopics.
Le Chatelier's principle states that if you change the conditions of a reversible reaction, the position of will shift to try and counteract the change.
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At equilibrium, if there are more products than reactants, we say that the position of equilibrium lies...
in the middle
to the left
to the right
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Which three factors affect the position of equilibrium?
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An increase in pressure moves the position of equilibrium to whichever side has the...
smaller number of gas molecules
larger number of gas molecules
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In a reversible reaction, changes in pressure will only affect substances that are in the:
solid state
gaseous state
liquid state
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Le Chatalier's principle states that if you increase the pressure, the position of equilibrium will shift to the side that the pressure back down.
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What is the effect on the equilibrium position if the pressure is increased in following reaction?
N2(g) + 3H2(g) ⇋ 2NH3(g)
the position of equilibrium shifts to the right
the position of equilibrium shifts to the left
the position of equilibrium remains unchanged
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What is the effect on the equilibrium position if the pressure is increased in following reaction?
H2(g) + I2(g) ⇋ 2HI(g)
the position of equilibrium shifts to the right
the position of equilibrium remains unchanged
the position of equilibrium shifts to the left
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In the following reaction, the sign of ΔHr tells us that the forward reaction is .
2NO2(g) ⇋ N2O4(g) ΔHr = -24 kJ mol-1
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What is the effect on the equilibrium position if the temperature is increased in following reaction?
2NO2(g) ⇋ N2O4(g) ΔHr = -24 kJ mol-1
the position of equilibrium shifts to the left
the position of equilibrium shifts to the right
the position of equilibrium remains unchanged
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What is the effect on the equilibrium position if the concentration of nitrogen is increased in following reaction?
N2(g) + 3H2(g) ⇋ 2NH3(g)
the position of equilibrium remains unchanged
the position of equilibrium shifts to the left
the position of equilibrium shifts to the right
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In a reversible reaction, if the forward reaction is endothermic, what would be the affect of increasing the temperature?
equilibrium would not shift
equilibrium would shift to the left
equilibrium would shift to the right
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In a reversible reaction, if the forward reaction is exothermic, what would be the effect of decreasing the temperature?
yield of products would increase
yield of products would decrease
no change in the yield of products
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What is the effect on the equilibrium position if a catalyst is added to the following reaction?
SO2(g) + O2(g) ⇋ 2SO3(g) ΔHr = -197 kJ mol-1
the position of equilibrium shifts to the right
the position of equilibrium remains unchanged
the position of equilibrium shifts to the left
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