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valentinak56 [21]
3 years ago
6

If 200 grams of water is to be heated from 24.0 degrees Celsius to 100.0 degrees Celsius to make a cup of tea, how much heat mus

t be added?
Physics
1 answer:
Colt1911 [192]3 years ago
5 0
Conveniently, some scientists have already figured out how much heat energy it takes to increase the temperature of one gram of water by exactly 1 degree Celsius. That is called the specific heat of water and it's value is 4.184J/g.

So simply multiply the specific heat with the number of grams and the number of degrees C like this:

heat = 4.184J/g * 200g * 76^o C = 63,596.8J = 63.5968 kJ
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In practice, if a voltmeter was connected across any combination of the terminals, the potential difference would be less than w
VladimirAG [237]

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