My question is 250 g of water at 20 C is cooled to -10 C . What is the volume change? I have the density of water at 20 C, p=.9982 g/cm^3 and at 0 C, p=.915 g/cm^3, but not for -10 C. I know how get the volume using density but how do I find out volume for -10 C?

One Response to “Physical Chemistry Volume Change Liquid to Solid?”

1. Boston on December 1st, 2008 7:03 am

   You’re right to be confused. Once you get to 0 C, you have ice (and you’re given the density). Going to -10 C does change the density of that ice, but I’m going to guess that the person asking the question is going to consider this density change negligible. I would just make a note that you are also making this assumption when you provide your answer.

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