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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: jewels on September 29, 2004, 08:24:05 PM

Title: word problem chemistry
Post by: jewels 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

Title: Re:word problem chemistry
Post by: Tetrahedrite 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