Question

You know two different expressions for ?G°. If a researcher determined Keq for a reaction at several different temperatures and then plotted lnKeq as a function of 1/T, what would the slope of the best-fit line to the plotted data ideally be?

a) ?S°

b) ?H°/R

c) ?S°/R

d) ??S°/R

e) ??H°/R

f) ?H°

Answer 1

delta Go= -RT ln Keq

delta Go = delta H - T*delta S

delta H - T delta S = -RT ln Keq

ln Keq = (- delta H/ R)*1/T + delta S / R

y = mx + c

m = slope

m = -delta H/R

Answer is e ---> -delta Ho/R

Answer 2

The best fit reaction for the given expression is as follows: ΔΗ。AS TR It can also be written as follows: NG.-MI (1).AS"( ) This equation is equivalent to the following relation as follows: The slope is Therefore, the correct option is e)