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Topic: word problem chemistry  (Read 6111 times)

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jewels

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word problem chemistry
« on: September 29, 2004, 08:24:05 PM »
How many calories are required to raise the temperature of 225g of water from 42C to 75C?
Thanks for any help
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Tetrahedrite

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Re:word problem chemistry
« Reply #1 on: September 29, 2004, 09:45:19 PM »
The definition of a calorie is the amount of energy required to raise the temp of 1g of water 1 degree C. So from 42-70 degrees is 28 x 225 = 6300 calories
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