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almond37 [142]
3 years ago
10

2. How much heat is released when 432g of water cools down from 710C to 180C?

Chemistry
1 answer:
nadya68 [22]3 years ago
7 0
The heat released by the water when it cools down by a temperature difference AT

is Q = mC,AT

where

m=432 g is the mass of the water

C, = 4.18J/gºC

is the specific heat capacity of water

AT = 71°C -18°C = 530

is the decrease of temperature of the water

Plugging the numbers into the equation, we find

Q = (4329)(4.18J/9°C)(53°C) = 9.57. 104J

and this is the amount of heat released by the water.
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