 So armed with the free energy in addition to the energy and also having our entropy we're going to start to reason a little bit about that I'm going to come back to that later on in the class for now You're going to need to believe me But it turns out that things like the hydrophobic effect that we already touched upon is actually caused by entropy not really energy It's going to take us a while to derive that so I will wait with that until next lecture I think but here too you can start to think in terms of how many different states are there to put things in And how is that related to hydrogen bonds? but The other thing we're going to need to do is relate this to things that you actually know But you might not have thought of this way the laws of thermodynamics