Question

Heat required to raise the temperature of 2 kg of water at 40℃ to 70℃ when c = 4200J/kg K is

Answer 1

Answer:

Answer

Explanation:

First off, the specific heat of water is 4.186 J/g°C, not kg.

In order to make this calculation, just some simple conversions are needed.

2 kg = 2000 g

change in temperature T = 60–10 = 50°C

4.186 * 2000 * 50 = 418,600 J of heat is necessary to raise the temperature of 2kg of water by 50°C