What are the signs of δs, δh, and δg for the formation of dew on a cool night?

a) +S, +H, +G

b) +S, +H, -G

c) +S, -H, +G

d) +S, -H, -G

e) -S, +H, +G

f) -S, +H, -G

g) -S, -H, +G

h) -S, -H, -G

Answers
h) -S, -H, -G

Any phase change from gas to liquid loses heat (exothermic -ΔH) and becomes more ordered (less disorder -ΔS).

ΔG is negative since the dew forms spontaneously.