OCR Gateway - C5 Part II

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  • Created by: Mahtasha
  • Created on: 06-05-16 13:15
What is a limiting reactant?
A reactant that, when used up, stops the reaction.
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What does a steeper curve on a graph represent?
A faster rate of reaction.
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What does a horizontal line on a graph represent?
The end of the reaction.
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What is a reversible reaction?
Where the products of the reaction can react themselves to produce the original reactants.
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What is equilibrium?
When the forward reaction is going at the same rate as the backward reaction.
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If there is a lot of the product, what position will the equilibrium move to?
The right.
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If there is a lot of the reactant, what position will the equilibrium move to?
The left.
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What three things change the position of the equilibrium?
Temperature, Pressure, and Concentration.
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Does a catalyst change the position of equilibrium? Why?
No - adding a catalyst speeds up the rate of reaction; however, it does not change the amount of product produced.
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What direction does an exothermic reaction go in?
Forward.
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In an exothermic reaction, what position will the equilibrium lie if you decrease the temperature?
It will move to the right, which is the exothermic direction.
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If the pressure in a reaction increases, what will the equilibrium do to reduce it?
It moves in the direction where there are fewer moles of gas to reduce the pressure.
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If you increase the concentration of the reactants, what will the equilibrium do to reduce it?
It will move to the right.
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What is the contact process used to make?
Sulfuric Acid.
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Other cards in this set

Card 2

Front

What does a steeper curve on a graph represent?

Back

A faster rate of reaction.

Card 3

Front

What does a horizontal line on a graph represent?

Back

Preview of the front of card 3

Card 4

Front

What is a reversible reaction?

Back

Preview of the front of card 4

Card 5

Front

What is equilibrium?

Back

Preview of the front of card 5
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