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24-08-2020
Physics

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when 20 grams of water is heated from 10 c to 15 c, the required energy in joule is

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jhzhang0801 jhzhang0801

24-08-2020

Answer:

418.6 J

Explanation:

We know the specific heat for water is 4.186 kJ/kg * °C, so this can also write as 4.186 J/g * °C, so the heat increases 5 C in this question, so you can get 4.186(J/g * C) * 5C * 20g = 418.6 J

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