equilibrium

Question 1

chemical equilibrium

Answer 1

the stage when the quantities of reactants and products in a reaction remain unchanged

Question 2

dynamic equilibrium

Answer 2

the rate of forward and backward reactions occur at the same rate
- temp is constant
- pressure is constant
- concenetration os sbstances stays the same
- reaction is incomplete

Question 3

what is equilibrium and reaction quotient expression

Answer 3

K or Qc = [products]/ [reactants]

Question 4

when Qc> K

Answer 4

When Qc is greater than K, the system is not at equilibrium. The proportion of products to reactants is greater than it would be at equilibrium. A system in this state would undergo a net backward reaction until the equilibrium constant is reached.
- reactions increase, products decrease k

Question 5

when Qc<K

Answer 5

When Qc is less than K, the system is not at equilibrium. The proportion of products to reactant is less than it would be at equilibrium. A system in this state would undergo net forward reaction until the equilibrium constant is reached.
-reactants decrease, products increase

Question 6

Qc=K

Answer 6

When Qc is the same as K, the system is at equilibrium is at equilibrium, the molarity of all species remain constant.

Question 7

when the equation is revered or flipped

Answer 7

equilibrium constant becomes the reciprocal of orginal K ( 1/K)

Question 8

when equation is doubled

Answer 8

square the orginal k value

Question 9

if two equations are added together

Answer 9

times the two k values together

Question 10

what does the equilibirum constant tell us

Answer 10

• indication of the extent of a reaction
• if its between 10^-4 to 10^4, concentration of reactants and products are relatively the same
• if its greater than 10^4, then products are significaltny bigger than reactans