Equilibrium

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What is Le Chatelier's principle?
If a system is subject to change, the equilibrium shifts to minimize the effects of the change
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What happens to equilibrium when temperature is increased?
Shifts to counteract the change
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What happens to equilibrium when delta H is negative and temperature is increased?
Shifts left
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What happens to equilibrium when delta H is positive and temperature is increased?
Shifts right
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What happens to equilibrium when pressure is increased?
Shift to counteract the change
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Where does equilibrium shift when pressure is increased?
Shifts to the side with the least moles of gas
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What happens when we increase concentration?
Adding more acid increases concentration of H+ ions
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What happens to equilibrium when concentration is increased?
Shift to counteract the effects of more H+ ions
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In which direction does equilibrium shift when concentration is increased?
Shifts in the opposite direction to where there was an increase in H+ ions
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How does a catalyst effect equilibrium?
Doesn't effect position
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What effect does a catalyst have on a reaction?
Causes equilibrium to be reached faster
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What reversible reaction makes ammonia?
Haber process
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What is needed for the haber process?
N2, H2, iron catalyst, 200 atmospheres, 673K
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What reversible reaction makes ethanol?
Hydration of ethene
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What things are used to shift equilibrium right in ethanol reaction?
High pressure, low temperature, excess steam, phosphoric acid catalyst
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What does CO and H2 create in a reversible reaction?
Methanol
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What conditions are used to make methanol?
Low temp, high pressure, copper catalyst
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Other cards in this set

Card 2

Front

What happens to equilibrium when temperature is increased?

Back

Shifts to counteract the change

Card 3

Front

What happens to equilibrium when delta H is negative and temperature is increased?

Back

Preview of the front of card 3

Card 4

Front

What happens to equilibrium when delta H is positive and temperature is increased?

Back

Preview of the front of card 4

Card 5

Front

What happens to equilibrium when pressure is increased?

Back

Preview of the front of card 5
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