Heat the water. A calorie is the amount of work it takes to heat 1 gram (or 1 mL) of water 1 degree celsius. We will be conducting this lab:
The unit calorie has historically been used in two major alternate definitions that differ by a factor of 1000:
* The small calorie, gram calorie, or calorie (symbol: cal) is the amount of heat (energy) required to raise the temperature of one gram of water by 1 °C.
* The large calorie, kilogram calorie, kilocalorie (symbol: kcal), or Calorie (capital C) is the amount of heat (energy) needed to increase the temperature of one kg of water by 1 °C, exactly 1000 small calories, or about 4.184 kJ.
See a video explaning the lab here: http://www.youtube.com/watch?v=BhaZnQ1EpQo
Peanut lab printout
Alternative to lab printout
1 comment:
This was my favorite experiment in the class. I guess burning something in class is always fun ;). I was able to understand Cal or cal before doing this experiment so it was fun and very imformative. I would enjoy doing this project again but with more in dept conversation about the physics of it all.
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