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## Homework Statement

Estimate the energies of interaction at 25 °C between (i) two hydrogen molecules and (ii) two nitrogen molecules, if each pair is separated by 0.3 nm. Explain fully and clearly your reasoning and any assumptions you make in your answer. State the source of the values of any molecular properties you use in your calculation.

## Homework Equations

Would I use the London dispersion force equation for this?

V = -3/4 α

^{2}I/r

^{6}

## The Attempt at a Solution

so for hydrogen -3/4 x α

^{2}x 1312 x 10

^{3}/(3 x 10

^{-10})

^{6}

Is this the right approach? Not sure where to get a value for polarisability from