October 28, 2016

Homework Help: Physics

Posted by Jena on Friday, November 17, 2006 at 5:15pm.

During an all-night cram session, a student heats up a 0.451 liter (0.451 x 10- 3 m3) glass (Pyrex) beaker of cold coffee. Initially, the temperature is 19.5 C, and the beaker is filled to the brim. A short time later when the student returns, the temperature has risen to 96.3 C. The coefficient of volume expansion of coffee is the same as that of water. How much coffee (in cubic meters) has spilled out of the beaker?

I know that the amount of coffee that spills out you calculate the volume change of the beaker, but how do i solve it.

Set up your equation:

coefficient of expansion = (1/V) x (change in volume)/(change in temp)

So, you know everything and can plug them in: you now the coefficient of expansion, you know the initial volume, you know the change in temperature, so yo can calculate the change in volume.

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