Physical and Chemical Properties of Water are two main factors which we must observe before bring it into our daily routine. Physical properties are that which we can notice without changing substance, General physical properties of water are its color, density and hardness. chemical properties are that in which a substance completely changes into a different substance. ninety seven percent water on the earth is salt water also called marine water. only three percent is fresh water. it has unusually large values of viscosity, surface tension, heat and entropy of vaporization. these all can be ascribed the extensive hydrogen bonding interactions present in liquid water.
In chemical terms water is composition where water molecule has two hydrogen atom bonded to a single oxygen atom call H2O. the difference between Physical and Chemical properties of water is simple until the material is involved. as that material converts it from solids to liquid and then vapor its change it to a complete different substance. in at high pressure and temperature like interior of giant planets it is argued that water exist as ionic water where molecules breaks down into a soup of oxygen and hydrogen ions. and as supersonic in more pressure where oxygen catalysis but hydrogen ions floats around freely in oxygen lattice.
Water exists in nature in three shapes with different forms. it exists in clouds at shape of vapor, with blue colored at sea, icebergs at polar oceans, white glaciers in mountains and at simple shape in the ground. but it is simply H2O in all these states.
listed Below some major Chemical and Physical Properties are:
- Water is soluble in amines, ketones, alcohol and carboxylates, and has poor solubility within aromatic, hydrocarbons, aliphatic and ethers. water is miscible in Sulfoxide, Dimethyl, Acetonitrile, Dimethoxyethane, etc. partially miscible in Bromine, Ethyl Acetate, Diethyl ether and Decloromethane.
- Water is odourless and tasteless liquid at standard pressure and temperature. ice and water has slightly blue colour. water mostly appears colourless in little quantity, but after given temperature to its vapors turn into Gas which is invisible.
- Water has interesting thermal properties when it heated from 0°C its melt on 4°C, it contracts and become more dense and unlike other substance it expands and become less dense when heated.
- Water has a very strong hydrating tendency because of its dielectric constant, water dissolves lot of ionic compounds. many ionic and covalent compounds can be hydrolyzed in water.
- Water has low Electrical conductivity, could be increases its conductivity due to its structure after changing the locations due to atmosphere and ionic additions. but pure water has very low electrical conductivity.
- Water has Boiling point of 70°C -100°C duo to change of air pressure, change of location and sea level.
- Water has properties of Adhesiveness which has the ability attract other molecules.
- Water is a polar molecule where molecule is bent, with negatively charged oxygen on one side and the pair of positive charged hydrogen molecules on the other side of molecule.
- Water has the second highest molar specific heat capacity of any known substance, after ammonia as will as a high heat of vaporization of 40.60 kJ mol-1. which both are a result of extensive hydrogen bonding between it molecules.
- Water at pure stat in a room temperature is orderless, low colourless and tasteless.
- Water is only substance which is exists in three shape liquid, solid and gas.
- Water has specific gravity at the range of 32-700oF at temperature of 0-370°C. and has density of 39oF at temperature of 4°C.