Equilibrium constant, Kc

Question 1

a homogeneous reaction is one in which all the reactants are

Answer 1

in the same phase

Question 2

in the symbol Kc, c means

Answer 2

that the constant is calculated using concentrations

Question 3

the subscript eq used in the equilibrium constant expression means

Answer 3

that the concentrations are those at equilibrium

Question 4

the expression for Kc is

Answer 4

[C]c[D]d
Kc= ————-
[A]a[B]b

Question 5

at a given temperature, the equilibrium constant does/does not change wit concentration?

Answer 5

does not change, unlike the equilibrium position

Question 6

the only factor that affects the value of the equilibrium position is

Answer 6

temperature

Question 7

heterogeneous reactions are those in which

Answer 7

at least one of the reactants/products is in a different phase to the others

Question 8

when writing equilibrium constant equations for heterogeneous reactions, we leave out the

Answer 8

solid reactants/products

Question 9

we leave out reactants/products in the solid phase when writing the equilibrium constant equation because

Answer 9

the concentration of a solid at a given temperature is determined by its density, which has a constant value