Question

How much heat energy will be given off in
cooling water of 2.5 kg from 85 °C to
35 °C?
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Answer 1

Answer:

Q = ms(t2 - t1 )

shc of water = 4.186

Q = 2.5 × 4.2 × (85 - 35 )

Q = 10.5 × 50

Q = 525 joule