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10 lut 2020 · A famous puzzle is whether an ice cube melts to nothing more quickly in salt water or fresh water. The answer is fresh water, because the water melting off the ice cube sinks in the plain water and rises in the denser salt water.
24 lip 2014 · For the salt spread on streets, lowering the freezing point means that ice can melt even when the outdoor temperature is below water’s freezing point. Both of these events demonstrate ...
9 lut 2024 · Salt is very good at making ice melt faster. When salt touches ice, it lowers the freezing point of water. This means the ice starts to melt at a colder temperature than normal. Salt breaks up the bonds between water molecules in ice. As the ice melts, it mixes with the salt to make a salty liquid. This liquid then melts even more ice around it.
This is why there is a greater attraction between the water molecules and the molecules of salt than there is between the molecules of salt by themselves, and why the water can dissolve the salt to create a salty solution. Other substances when mixed with water can also lower its freezing point.
7 mar 2019 · When ice melts, water and ice coexist. Because salt particles make it harder for water particles to freeze back onto the ice, the ice that is in contact with dissolved salt...
22 maj 2024 · However, we noticed that the coloured water mixed with the freshwater quickly, forming a convection current. The cooler ice cube water sank to the bottom, and the warmer, less dense water rose up, creating a small current as the ice melted. This didn’t happen in the salty water.
21 paź 2019 · Assuming the air and water are both the same temperature, ice usually melts more quickly in water. This is because the molecules in water are more tightly packed than the molecules in the air, allowing more contact with the ice and a greater rate of heat transfer.
