Changing states of water

Evaporation is the process by which liquid water turns into water vapor at temperatures below the boiling point. This is how wet clothes dry when exposed to the sun.

Both boiling and evaporation involve a phase change from liquid to gas. Boiling occurs throughout the liquid at a specific temperature, while evaporation occurs at the surface at various temperatures.

Freezing is the process where liquid water loses heat and changes to solid ice at 0°C for pure water. Water gains heat during melting, not freezing. Freezing changes liquid to solid, not solid to liquid.

When warm water vapor comes into contact with a cold surface, it loses heat energy. This causes the gas to transition back into a liquid state, a process known as condensation.

The rate of evaporation is influenced by temperature, surface area, wind speed, and humidity. Mass is not a factor that directly affects the rate at which a liquid evaporates.

Freezing is an exothermic process (heat loss), and evaporation is a process that requires energy input from the surroundings (heat gain). Since freezing is heat loss, the statement is false.

Melting is the phase transition where a substance changes from a solid state to a liquid state by absorbing heat.

Mist is formed when water vapor in the air cools down and condenses into tiny liquid water droplets suspended in the air.

Humidity is defined as the concentration of water vapor present in the air. It is a standard meteorological term.

Condensation is the process where a substance in a gaseous state changes into a liquid state, typically when cooled.

Under standard atmospheric pressure, the boiling point of pure water is defined as 100 degrees Celsius.

The melting point of ice and the freezing point of pure water are the same temperature, which is 0 degrees Celsius at standard atmospheric pressure.

A larger surface area allows more molecules to escape into the air simultaneously, which increases the rate of evaporation rather than slowing it down.

An iceberg is made of solid water (ice). When it melts, it transitions from a solid state to a liquid state.

Boiling is the rapid phase transition from liquid to gas that occurs specifically at the boiling point (100 degrees Celsius for water at sea level).