reversible reactions

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  • Created by: Pablos
  • Created on: 13-04-18 14:20
Give I example of a reversible reaction?
Heating copper(II) sulfate cyrstals and turns from blue cyrstals to white powder
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Give another example of reversible reaction?
Heating ammonium chloride to form ammonia gas and Hcl
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What does reversible reactions under closed conditons mean?
No substance are added to reaction mixture and no subsa=tances escape from it. But heat may be either given off or absorbed.
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What is dynamic equilbrium
the reactions are still continuing and the total amounts of the various things present are now constant.
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What is position of equilibrium?
A reference to the proportions of the various things in the equilibrium mixture.
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What is Le Chatelier's principle?
If a dynamic equilibrium is disturbed by changing the conditions, the reaction moves to counteract the chnage.
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Things to try to influence the reaction?
Increasing/decreasing the concentrations of substances present. Changing pressure, temp, Adding a catalyst
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Which factor has no effect on position of equilibrium?
A catalyst
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What is the Haber process
Takes nitrogen from the air and hydrogen produced from natural gas and combines them into ammonia
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What is the chemical equation for the process
N2(g)+3H2(g)=2NH3(g)
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what raw materials are needed for the process?
Nitrogen from the air and Hydrogen made from natural gas
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What 4 conditons are needed for Haber process to work?
1 vol of N2 to 3 vol of H2, 450 degrees, 200 atmostpheres, iron catalyst
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Card 2

Front

Give another example of reversible reaction?

Back

Heating ammonium chloride to form ammonia gas and Hcl

Card 3

Front

What does reversible reactions under closed conditons mean?

Back

Preview of the front of card 3

Card 4

Front

What is dynamic equilbrium

Back

Preview of the front of card 4

Card 5

Front

What is position of equilibrium?

Back

Preview of the front of card 5
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