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Saturday, June 15, 2019
Solution
A homogeneous mixture of two or more substances is said to be solution. These substances are classified as Solvent and Solute. The solution in which there are two substances is said to be binary solution. One solvent and other is solute.
The solution in which having more solute than that would be necessary to saturate it at given temperature is said to be Supersaturated.
Friday, June 14, 2019
Matter Surrounding Us
Matter
Anythings which have both mass and volume is said to be matter or occupy space and have mass.
Air, Gas, Water, Stone, Clouds, Stars, Plants and Animals, Food stuffs etcetera are the examples of matter.
Early Indian philoshgers classified matter in the form of five basic elements the Panch Tatva
which are
- Air
- Earth
- Water
- Fire
- Sky
As per Modern Age, classification of matter based on Physical Properties and Chemical Nature of matter.
As per Physical Properties,
Matters are made up of particles. Particles are very small. They are small beyond of our imagination.
Estimating how small are the particles of matter. With every dilution, though the colour becomes light, it is still visible.
There are following characteristics of particles of matter.
1. Particles of matter have space between them.
For example, Lemonade (nimbu paani) Particles of lemon evenly distributed in water. Particles of one type of matter get into the spaces between particles of the other. This show that there is enough space between particles of matter.
Due to which a diver is able to cut through water in a swimming pool.
2. Particles of matter are continuously moving.
Particles of matters possess kinetic energy. As the temperature rises, particles move faster. The kinetic energy of the particles increases with the increase of temperature.
Due to which smell of hot sizzling food reaches us several metres away, but to get the smell from cold food we have to go close.
3. Particles of matter attract each other.
Particles of matter have force acting between them. The force keep the particles together. The strength of this force of attraction is different for different matter.
States of Matter
There are three states of a matter which are as follows
- Solid
- Liquid
- Gas
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