Friday, November 26, 2010

Ch 13_2 #4

First find how much heat you need to heat ice to melting temperature, then calculate how much heat needed to warm up water. Where does this heat come from?

2 comments:

Anonymous said...

I have -10 and 70 as my #s so i thought that would be a temp change of 80. I did 80*120ml*900 (C of Al) and got 8640000 and then divided by 20 which is the other temp and got 432000 which is wrong any help

Prof. Tsybychev said...

How about trying to convert everything into SI units?