An unresolved question! See Mpemba Effect in wikipedia for the best experimental conditions for this anomaly!
yes
Yes it does. Cold water freeze slower than normal or hot water.
No. It takes longer to freeze because cold water is closer to it's freezing point.
The purpose of conducting the "Does hot water freeze faster than cold water" project is to investigate and understand the phenomenon known as the Mpemba effect, which suggests that hot water can freeze faster than cold water under certain conditions. This project aims to explore this concept and potentially uncover new insights into the freezing process of water.
The fact that hot water may freeze faster than cold is often called the Mpemba effect
Water will freeze faster than salt water.
no salt water does not freeze faster than sugar.
Yes. Water of any starting temperature must be cooled to 0 oC in order to freeze.
no because the cold water speeds up the process by starting it
Cold water, being the closest to freezing point, will obviously freeze the fastest. Hot water will freeze the second fastest, and salt water barely ever freezes, except in very cold conditions.
The time it takes for hot water to freeze depends on factors such as the initial temperature of the hot water and the surrounding temperature. In general, hot water will freeze faster than cold water due to the Mpemba effect, which is the phenomenon where hot water freezes faster than cold water under certain conditions.
Cold water will freeze faster. Because the freezing point of water is 0oC, water that is closer to that point will freeze faster then hot water. This is because it will require less time to lower the temperature to the freezing point.