alexishenning
14.01.2021 •
Physics
Does anyone know how to do this pleaseeeee
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Ответ:
See the answer below.
Explanation:
The latent heat of fusion is defined as the amount of energy needed to make a phase change from solid to liquid. And it can be calculated by means of the following expression:
where:
Qfusion = Heat Energy [J]
m = mass = 0.65 [kg]
Dh = latent heat fusion = 330000[J/kg]
2)
We know that energy can be calculated from power, where power is defined as the relationship between energy over time.
where:
P = power = 60 [w]
E = energy [J]
t = time = 5 [min] = 300 [s]
The mass change due to the process is equal to:
Now using the following equation for the latent heat of Fusion, we can calculate this value:
Ответ: