unit 2

Question 1

in all systems at equilibrium are

Answer 1

constant in concert ratio of reactants and products

Question 2

chemical systems tend to move toward positions of what enthalpy and entropy

Answer 2

min enthalpy and max entropy

Question 3

equilibrium shifts left when

Answer 3

rate of forward reaction is less that reverse reaction

Question 4

equilibrium shifts right when

Answer 4

rate of forward is greater than reverse

Question 5

equilibrium is a dynamic process because

Answer 5

forward and reverse reactions continue to occur

Question 6

additions of catalyst to a equilibrium system

Answer 6

increases rate of formation of reactants and products

Question 7

catalyst affects a reversible reaction by

Answer 7

enabling equilibrium to achieve faster

Question 8

something greater than 1 in a equilibrium system favours

Answer 8

products

Question 9

something less than 1 in a equilibrium system favours

Answer 9

reactants

Question 10

catalyst is added to a system already at equilibrium. How are forward and reverse reaction rates affected by the addition of the catalyst?

Answer 10

both increase

Question 11

chemical equilibrium is described as “dynamic” because

Answer 11

both reactants and products continue to form

Question 12

hat will cause a shift in the equilibrium?

Answer 12

changing temp