Gibbs energy and equilibrium

Question 1

the equilibrium constant and the Gibbs energy change are related in the equation:

Answer 1

ΔG = RTlnK

where R is the gas constant (8.31 J mol-1 K-1)

Question 2

ΔG = RTlnK can be rearranged to giver K as:

Answer 2

K = e to the power of ( - ΔG/RT)

e is a mathematical constant equal to 2.718. The natural logarithim is ln to the base e

Question 3

in K = e to the power of ( - ΔG/RT), if ΔG is negative, then the exponent (the expression in the brackets) is positive and the equilibrium constant will be greater than 1 which means the products are

Answer 3

favoured

Question 4

in K = e to the power of ( - ΔG/RT), if ΔG is negative, then the exponent (the expression in the brackets) is positive and the equilibrium constant will be

Answer 4

will be greater than 1 which means the products are favoured