Le chateliers

Question 1

increase in temperature in exothermic reaction

Answer 1

shifts to the left

Question 2

decrease in temperature in exothermic reaction

Answer 2

shifts to the right

Question 3

increase in temperature in endothermic reaction

Answer 3

shifts to the right

Question 4

decrease in temperature in endothermic reaction

Answer 4

shifts to the left

Question 5

increase in pressure

Answer 5

shifts to side with fewest number of moles

Question 6

decrease in pressure

Answer 6

shifts to side with most number of moles

Question 7

increase in concentration

Answer 7

shifts to the opposite side to reduce concentration

Question 8

decrease in concentration

Answer 8

shifts to side where concentration has decreased

Question 9

define Kc in terms of products and reactants

Answer 9

Kc = [products]/ [reactants]

Question 10

what does the value of Kc tell us?

Answer 10

indicates the relative proportions of reactants and products in the equilibrium

Question 11

if the Kc value is 1, what does it suggest about the position of equilibrium?

Answer 11

halfway between reactants and products

Question 12

if the Kc value is >1, what does it suggest about the position of equilibrium?

Answer 12

position of equilibrium is towards the products

Question 13

if the Kc value is <1, what does it suggest about the position of equilibrium?

Answer 13

position of equilibrium is towards the reactant