What is The process in which water in liquid form on the surface is heated and changed to vapor form?

Answer 1

the simple answer is boiling. when the vapor pressure of the liquid matches or exceeds the pressure on the liquid it will turn to vapor. a pot of water on a stove at sea level will boil,or vaporize, when the vapor pressure meets or exceed 14.7 psi, or atmospheric pressure. this as we know is reached at 212 degrees F, or 100 deg C. as the pot is elevated the temperature to boil is reduced due to the reduced atmospheric pressure at a given elevation. a typical lab experiment hooks a vacuum pump up to a container of water, and at some level of vacuum the water will boil, or vaporize, with no increase in temperature required; only by decreasing the pressure on the liquid to the vapor pressure.

Answer 2

If only water molecules from the surface are going into the gaseous phase, then this is called evaporation. All liquids will exhibit some amount of evaporation at a temperature below the boiling point, depending on its vapor pressure. Vapor pressure depends on temperature, and each liquid will have its own vapor pressure vs. temperature curve. When a liquid is hot enough that its vapor pressure is equal to that of the atmosphere, then the proper term is "boiling". At this point, molecules throughout the volume of the liquid now have the energy to enter the gas phase, not just at the surface.

Answer 3

Water vapor changes to liquid water during the process of condensation.

Answer 4

Liquid water becomes water vapor at any temperature through evaporation, and also at the boiling point, i.e. for pure water, 100oC.

Answer 5

At any temperature through evaporation, it will turn into water vapor, also known as steam.

Answer 6

The process is evaporation

Answer 7

A phase change.

Answer 8

condensation