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13 January, 13:04

Calculate the energy needed to heat 4 kg of water from 25°C to 45°C.

heat =

80 Kcal

100 Kcal

180 Kcal

280 Kcal

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Answers (1)
  1. 13 January, 13:32
    0
    (1 cal/g °C) x (4000 g) x (45 - 25) °C = 80000 cal = 80 kcal. So the answer is 80 kcal.
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