How much water is lost to evaporation when repeatedly freezing/melting water in a closed container?

Question

To add on for clarification- I thought that when energy was exchanged that there was always waste-so no energy is actually lost- you just have a lower grade product, which is why I assumed a small amount of water would slowly go away into another form, yet still inside the container. That is not the case?

Answer 1

If the water is in a closed container, there can be no loss due to evaporation or any other process. A closed container will keep the contents in it regardless of what state the contents is in. That is, the water can be frozen, melted, or evaporated as many times as you want and the mass will always remain the same.

Answer 2

However much mass it takes to acheive the equilibrium vapor pressure of water at a temperature of interest. The maximum would be at your highest temperature, the minimum at the lowest temperature. All the water stays in the closed container.

Answer 3

None, unless the water vapour can escape the container. Water also condenses/evaporates, however the water stays within the container unless the water vapour escapes

Answer 4

None will be LOST in a CLOSED container.

Or did you want to know how much could evaporate in a closed container??

Answer 5

None, by the definition of a closed system, and the Law of Conservation of Mass.

Answer 6

NONE

Of course none, it is because it is a closed system, there is mass exchange between the system and the surroundings, only energy exchange.

Answer 7

None. It's a closed system, so no water molecules can escape.

Answer 8

None