Problem: 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

FREE Expert Solution

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:


G° = H°-TS


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Problem Details

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