Answer:
The correct answer is 21.3 J
Explanation:
The heat absorbed by water can be calculated by using the following equation:
heat= m x Sh x ΔT
Where m is the mass of water (2.46 kg= 2460 g), Sh is the specific heat capacity of water (4.18 J/g.ºC) and ΔT is the difference of temperatures (final T - initial T). We introduce this values and calculate the heat:
heat=2460 g x 4.18 J/g.ºC x (27.31ºC - 25.24ºC)
heat= 21,285.39 J
As 1 KJ= 1000 J, we must divide the answer into 1000 to obtain the heat in KJ:
21,285.39 J x 1 KJ/1000 J= 21.28 KJ≅ 21.3 KJ
