- #1

It's me

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## Homework Statement

Try to estimate the latent heat of vaporization of water and nitrogen using the Van der Waals model. What happens?

## Homework Equations

$$\Delta Q = T\Delta S=L$$

$$S=nR\left[ \ln\left(\frac{(V-nb)T^{3/2}}{n\Phi}\right)+\frac{5}{2} \right]$$

## The Attempt at a Solution

I predict the latent heat of vaporization of water will be wrongly approximated by the Van der Waals model. By looking at the equation for entropy I think the ##\Delta S## is going to be zero, so the latent heat would be zero also. But I am not sure if I am looking at the problem in the wrong way.