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Chemistry / What intermolecular forces occur in a mixture of ethanol and water?

« on: 17/03/2011 11:18:03 »

A question put to me by my Chemistry teacher was "What are the intermolecular forces in Ethanol and in Water, and then explain what occurs when these two liquids mix (I suspect it's in relation to the intermolecular forces)?"

So the intermolecular forces are hydrogen bonds, but what happens when the two liquids mix? Does the total volume increase, or decrease?

Thanks.

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Chemistry / Question on the effect of pressure on reaction rate

« on: 09/06/2010 21:51:19 »

Hi, I'd just like to know what effect an increase in pressure, in a system where there are the same number of moles on either side of the equation, has on the rate of attainment of the equilibrium?

Thanks.