How do solids convert into liquids and gases?

The solid, liquid and gaseous phases for a particular substance are made up of the same atoms or molecules. For example, solid water (ice), liquid water and water vapour all comprise only H2O molecules. So, what is it that determines which phase forms? read more

The solid, liquid and gaseous phases for a particular substance are made up of the same atoms or molecules. For example, solid water (ice), liquid water and water vapour all comprise only H2O molecules. read more

A gas can be converted into liquid state by applying pressure over it below its critical temperature. Below critical temperature gases behave like a real gas and van der waal’s force of attractions operates. read more

Some solids turn directly into gases when heated, without passing through a liquid state. This is known as sublimation, but it only happens with a few solids under special conditions. Unusual changes › Solid (ice) If liquid water is frozen, it turns into a solid called ice. Liquid (water) Water is a liquid at room temperature. read more