Will ice melt in vacuum

Answer 1

Ice melts when heat is transferred to it. This can happen through conduction (heat is transferred through a material touching the ice) or radiation (shining light on the ice). If ice is placed in a vacuum, the air can no longer conduct heat to it, and it will last longer, but it can still melt if it sits on a support that conducts heat, or light shines on it. In the vacuum of space, ice comets can persist for a very long time, melting bit by bit when they get close to the star they orbit. When this happens, the water evaporates and gets blown away by the solar wind - which we see as the comet's tail.

Answer 2

This is a chicken and egg question. No, ice will not melt in a vacuum as, in a true vacuum there are no particles. The transfer of heat which is required for ice to melt could be in the form of conduction, convection or radiation. Conduction and convection require matter to transfer heat; radiation requires EM radiation by photons in the Infra Red band - wave-partical duality theory states that photons are matter which cannot exist in a vacuum.

ice in a vacuum sublimes.

Ice does not melt in a vacuum it sublimes, (turns directly into water vapour) the rate at which it does this depends upon the temperature. For example when freeze drying coffee to make instant coffee or dry out wet documents the temperature is kept at about 0 degrees, at this point the water easily sublimes int water vapour. In a comet the temperatures are so much lower that the ice that makes up part of them are not able to sublime to any real degree until they are heated by the energy of a sun at which time you can see the result in the tail. So ice does not melt in space because it sublimes directly into water vapour. and this process depends on the temperature at the time. the colder the ice is the lower the sublimation.

For more info on this go to the related link (Comets ice and Vacuum) below

Answer 3

Since the melting of the ice is dependent on temperature and not the surrounding gas we can say it can.

Answer 4

yes yes it does if it gets neer the sun

Answer 5

No.