Question

Describe in detail what you expect for the changes in enthalpy, entropy, and free energy when a sample of liquid evaporates. How does temperature affect these changes?

Answer 1

@Somy lol sorry to bother again

Answer 2

@aaronq

Answer 3

So basically, you're going from liquid to gas. You need to put IN energy in the liquid in order for it evaporate to a gas, so the enthalpy is positive (endothermic process). Since particles in gas move more chaotically than particles in liquid, your entropy (the amount of chaos/disorder) increases as well. An increase in temperature will increase both enthalpy and entropy. Free energy relates to how spontaneous a process is, which depends all three of the variables mentioned above (enthalpy, entropy, and temperature). Quantitatively, Free energy (or deltaG) = deltaH - TdeltaS, where H is enthalpy, S is entropy, and T is temperature

Answer 4

**Actually, I think increasing the temperature will just increase the entropy (make the particles move more chaotically), and NOT the enthalpy. I think the enthalpy remains constant and that increasing the temperature of something will help it reach the enthalpy faster.

Answer 5

That makes sense! Thank you!

Answer 6

You're welcome :)

Answer 7

oh sorry i was not here T_T

Answer 8

It's okay @Somy , I got this haha

Answer 9

thnx :D @aprehan