how much heat is released when 70.9g of water at 66C cools to 25C? The specific heat of water is 1 cal/gC

Chemistry

1 answer:

Serga [27]3 years ago

7 0

Answer:

-12162.47 joules (or -12000 joules when accounting for significant figures)

Explanation (btw I used 1 cal as 4.184 joules because SI units are better):

q = m c delta T

q = (70.9) (4.184) (25 - 66)

q = (70.9) (4.184) (-41)

q = -12162.47 joules

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