We’re being asked to determine the **sign of ΔH and if TΔS is less or more than ΔH during evaporatioon**

In this case, we can determine **ΔS and use the relationship between ΔS and ΔH.**

We can calculate for **ΔS ** using the following equation:

$\overline{){\mathbf{\u2206}}{\mathbf{G}}{\mathbf{\xb0}}{\mathbf{}}{\mathbf{=}}{\mathbf{}}{\mathbf{\u2206}}{\mathbf{H}}{\mathbf{\xb0}}{\mathbf{-}}{\mathbf{T}}{\mathbf{\u2206}}{\mathbf{S}}}$

For the evaporation of water during perspiration on a hot, dry day,

a. ΔH is positive and TΔS < ΔH.

b. ΔH is negative and TΔS < ΔH.

c. ΔH is positive and TΔS > ΔH.

d. ΔH is negative and TΔS > ΔH.

e. ΔH is positive and TΔS = 0

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Gibbs Free Energy concept. You can view video lessons to learn Gibbs Free Energy. Or if you need more Gibbs Free Energy practice, you can also practice Gibbs Free Energy practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty of*For the evaporation of water during perspiration on a hot, d...*as medium difficulty.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Leipzig's class at UW-SEATTLE.