Equilibria Topics (not In Mocks)

Question 1

Dehydration of hydrated copper sulfate (reversible reaction)

Answer 1

CuSO4.5H2O <—> CUSO4 + 5H2O

Question 2

Heating ammonium chloride (reversible reaction)

Answer 2

NH4Cl <—> NH3 + HCl

Question 3

A reversible reaction can reach dynamic equilibrium in a…

Answer 3

Sealed container

Question 4

Characteristics of a reaction at dynamic equilibrium

Answer 4

-forward and reverse reactions occur at same rate
-concentrations of reactants and products remain constant.

Question 5

Why does a catalyst not effect position of equilibrium

Answer 5

The catalyst has the same effect on activation energy for both the forward and reverse reaction, therefore there is no effect on the POE

Question 6

How does increase and decrease in temp affect POE

Answer 6

Increase - POE shifts in direction of endothermic reaction
Decrease - POE shifts away from the direction of endothermic (towards exothermic)

Question 7

How does increase and decrease in pressure affect POE

Answer 7

Increase - POE shifts in direction of reaction that produces fewer moles of gas
Decrease - POE shifts in direction of reaction that produces more moles of gas