An ice cube is already frozen.
But if you mean water, there is no known point at which all water freezes. While most people accept that the point at which water will turn to ice is always 0 Degrees, water can still be liquid after that point.
32 F, Zero C
Water + confined square container + temperatures below freezing point = ice cube
The motivation is to decrease thr freezing point.
It is lower.
Im not sure about time, but add salt or any impurity to a solution will lower its freezing point.
It depends on the surrounding temperature. Water freezes at 0 degrees C, or 32 degrees F. Indeed, water can get colder than its freezing point. Consider the ice cubes in the freezer. If you put a thermometer inside with the cubes, you will discover the interior of the freezing compartment is almost always well below water's freezing point of 0 C (32 F). Think about it: I you were to drop an ice cube into liquid nitrogen at -195.5 C, the ice cube would cool to -195.5 C.
Water + confined square container + temperatures below freezing point = ice cube
Freezing point of water
An ice cube will melt when it is above the freezing point of water. At this point the individual molecules have enough energy to vibrate more causing the ice cube to melt.
It will melt! But you have to add enough energy to equal the latent heat as well as to bring the ice up to the freezing point, if it is in a freezer to start it will be at about -21degC.
when you see ice cube it gets so cold
yes as the salt dissolves lowering the ices freezing point!!
Any impurity decrease the freezing point of water.
The freezing point of water is 32 degrees F.
Protect from what. An ice cube with melt unless kept at or below freezing.
If you keep the surrounding temperature below or around freezing point... yes.
A liquid becomes a solid when the temperature reaches is freezing point.
freezing