well for something to freeze it has to be 0 degrees or lower which is what ice is, frozen water. so the water has to be 1 degree or more to NOT freeze so the ice is colder than salt watercoz salt water is not frozen... does t6hat make sense? Actually, salt water CAN be colder than ice because the salt lowers the freezing point of the water.
it is warmer
Because of its chemicalsAnother AnswerSalt does not make ice 'colder'; salt melts ice by reducing its freezing point based on the mixture of salts with the ice/ water.
Adding salt to ice water does make it colder. It lowers the freezing point of the water making the mixture colder. The ice will melt more slowly because the water's freezing and melting points have been depressed by the addition of the solvent salt.
Because salt lowers the temperature of the water. It's a chemical reaction.
Adding salt to ice water does make it colder. It lowers the freezing point of the water making the mixture colder. The ice will melt more slowly because the water's freezing and melting points have been depressed by the addition of the solvent salt. Adding the salt does not by itself lower the temperature of the water, it simply lowers the freezing point of the water.
AnswerTo make it colder.
Salt lowers the freezing temperature of water/ice therefore the water/ice needs to be colder then usual to freeze.
Dry ice is colder
Salt doesn't make ice colder. It basically reduces the melting point of ice. Is an untrue answer, it melts the ice faster.
Because the salt lowers the freezing temperature of the water making the water colder. Ice in a glass of water will cool to 32 degrees. Ice with salt and water will cool to 25 degrees.
I Know Snow is colder than Ice butt Ice Water is much colder than ice
It lowers the freezing temperature of the water/ice, causing it to become much colder and making colder/better ice cream.
it is a process called freezing point depression. The salt lowers the freezing point of water therefore it has to be colder for the water to return to ice
Adding salt to ice make the ice colder thus the ice cream that's surrounded by the colder ice freezes better/quicker.
Salt water is colder than the fresh water.
Salt has the effect of making the ice colder. Therefore, the ice cream becomes colder too. Salt is added to ice to lower the temperature of the ice/water mixture. Without the salt, the temperature would not fall below 0 degrees Celsius, which is needed to make ice cream. The freezing point of salt water is below that temperature and thus allows the cream to partially freeze, a necessary part of making ice cream.
Some Ice would melt, absorbing heat (enthalpy for the phase transition). Since Salt Water has a lower freezing point than zero degrees, the liquid will cool down. This colder liquid will chill the ice (if it isn't already colder than zero) and the result will be a mixture of ice and water that is colder than zero degrees C. This is why adding salt to ice buckets can cool Champagne faster.
Any kind of salt will make some of the ice melt, and decrease the net temperature of the solute.
Water with salt dissolved in it has to be colder than pure water in order to freeze. That's why we throw salt on snow and ice on the street to melt them.
because salt makes stuff colder
Add salt to the ice to make it colder.
Salt water needs to be much colder than fresh water to freeze because salt melts ice.
When Salt dissolves into water it requires energy. Some energy is consumed by the process of salt dissolution and the water stays colder (relatively) for a longer time, thus it takes longer for the ice to melt.
why does adding salt to water make it colder? The salt is not actually making the ice colder. The internal portions of the ice are already below 0 degrees Celsius. The salt, or NaCl, gets in the way of the intermolecular forces of the water, allowing the ice to melt at lower temperatures and remain in the water phase below 0. In other words, the water molecules are normally rigid enough to freeze at 0 degrees, but the addition of salt makes it more difficult for them to be rigid enough. This lowers the melting point. As the internal portions of the ice are already below 0, when the external ice is melted below 0 also, the internal, very cold portions, can further cool the water/ice mixture.
In a sense. When salt is added to ice the melting point is dropped, meaning that water and other things that freeze much be colder to freeze; this keeps the water that results in salty water at a colder temp--below the freezing point, so anything that is not salty that comes into contact with it freezes.