Essay On The Mpemba Effect

How does the temperature of water affect the appearance of the Mpemba effect?
Introduction
Context:
The Mpemba effect is a hypothetical effect that stipulates that the hot water will freeze faster than cold water. The effect was first noted by Aristotle : “The fact that the water has previously been warmed contributes to its freezing quickly: for so it cools sooner. Hence many people, when they want to cool water quickly, begin by putting it in the sun.” Later on, the effect got its name from a Tanzanian student, Erasto Mpemba, who observed that hot water sample cooled faster in the freezer than the sample of cold water. There is a variety of conflicting research, and some of the researchers say that the Mpemba effect does not exist , and some researchers say that it does . During the research that says that the effect can be observed, the effect is explained by the reduced amount of dissolved gasses, evaporation of the hot water, convection in the water, and super cooling. It is reported that there

Due to the lack of equipment, and the possibility to keep the influence of the other variables, such as the amount of gas or salts dissolved in water, except for assuming that distilled water is pure, or the pressure of the atmosphere the only variable that I can change in order to observe the effect is temperature. What is more, I aim to simplify the method in order to observe whether the effect can be observed under more real conditions, and the lack of equipment in our school will allow me to do that.
Hypothesis:
There should be a certain range of temperatures below the boiling point of water, as water has to be in the liquid state, where the effect should be observable. I believe, that only in a certain range of temperatures the effect will be observable, as otherwise the effect would be observable any time.
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