5.6 - Equilibrium

Question 1

What conditions do a reversible reaction depend on?

Answer 1

-pressure
-temperature
-amount of reactants and products

Question 2

What type of reaction is the dehydration of copper sulphate?

Answer 2

reversible reaction

Question 3

How do you make copper sulphate reaction go forwards?

Answer 3

heat copper sulphate crystals - turn from blue to white

Question 4

How do you make a copper sulphate reaction go backwards?

Answer 4

add water to anhydrous copper sulphate - turns white to blue

Question 5

What type of reaction is the thermal decomposition of ammonium chloride?

Answer 5

reversible reaction

Question 6

What is the different between equilibrium and dynamic equilibrium?

Answer 6

-dynamic is when the forwards and backwards reactions are happening at the same rate
-equilibrium is when the concentrations of the reactants and the products remain unchanged

Question 7

What is meant by the equilibrium position of a reaction?

Answer 7

balance of products and reactants

Question 8

What 3 variables are responsible for the shifting of an equilibrium?

Answer 8

-amounts of reactants or products
-gas pressure
-temperature

Question 9

If you increase temperature, the reaction will shift to…

Answer 9

whichever direction is endothermic

Question 10

If you decrease temperature, the reaction will shift to…

Answer 10

whichever direction is exothermic

Question 11

If you add a substance to the reaction, the reaction will shift to…

Answer 11

whichever direction uses it up

Question 12

If you remove a substance from the reaction, the reaction will shift to…

Answer 12

whichever direction creates it

Question 13

If you increase gas pressure, the reaction will shift to…

Answer 13

whichever side has the fewest moles of gas

Question 14

If you decrease gas pressure, the reaction will shift to…

Answer 14

whichever side has the most moles of gas