Physical characteristic of water
- pure water- colourless, odourless and tasteless liquid
- the state in which water exist can be changed easily by heating or cooling the water
- two physical characteristic of water - freezing and the boiling point of water
The freezing point of water
- freezing is the physical process that takes place when water changes into ice. The temperature at which water freeze to form and ice is called the freezing point of water
- as water freeze to become ice, heat is lost to the surroundings. The loss of heat by the freezing water can be explained by the Kinetic Theory. As the particle of liquid come together to form a solid, heat is released by the liquid into its surroundings
The boiling point of water
- boiling is the physical process in which water changes into steam. The temperature at which water boils to produce steam is called the boiling point of water.
- as water boils to become steam, heat is absorbed from its surroundings. The gain in heat can be explained by the Kinetic Theory. As the particle of liquid break apart to form a gas, heat is absorbed from the surroundings.