The physical properties of water
Physical properties: colorless, tasteless and odorless liquid, boiling point 100℃, freezing point 0℃, density 1g/cm3, can dissolve a variety of substances into a solution.1, water is a colorless, tasteless, non-toxic, transparent liquid, drinkable, pure water is not easy to conduct electricity.At atmospheric pressure, the freezing point of water is 0℃ and the boiling point is 100℃.Many common gases can be dissolved in water, such as hydrogen, oxygen, nitrogen, carbon dioxide, inert gases, etc.2, under atmospheric pressure, the freezing point (freezing point) of water is 0℃, the boiling point is 100℃, at 4℃, 1 cubic centimeter of water mass is 1 gram, at this time the maximum density.When water is cooled to 0℃, it can form ice and increase its volume by 1.09 times.When heated to 100℃, water turns into steam, increasing its volume by 1,600 times.3. Water is a colorless, tasteless and transparent liquid at room temperature and pressure.In nature, pure water is rare. Water is usually a solution of acid, alkali, salt and other substances. It is still customary to call this aqueous solution water.Pure water can be obtained by several distillations in a platinum or quartz vessel. Of course, this is also relatively pure water, and it cannot be absolutely free of impurities.Water is a substance that can change between liquid, gas and solid.Solid water is called ice;The gaseous phase is called water vapor.When the temperature of water vapor is higher than 374.2℃, gaseous water cannot be transformed into liquid water by pressure.