Is water vapor a liquid, gas, or neither?

Therefore, water vapour below the dew point can exist both as a liquid in the form of micro-droplets and a gas, whilst above the dewpoint the water exists solely as a gas. Rapid temperature drops can produce both of the states of water. read more

A gas is a single well-defined thermodynamic phase, wheras a vapor is a mixture of two phases (generally gas and liquid). A cloud is made of water vapor, the clear sky contains gaseous water. Steam is vaporized water. When a gas condenses to liquid, two physical processes are possible. read more

The word “steam” applies both to transparent water vapor and to visible clouds of water suspended in air. The word “fluid” is a very important technical term. It encompasses both gas and liquid. That is, any gas is a fluid and any liquid is a fluid. read more