Define matter and its states in Chemistry

Updated on Jan. 8, 2021 03:17 PM IST by Lakshmi Arya
  1. Anything that occupies space and has mass and offers resistance to any applied force is called matter.
  2. Matter is made up of particles. The particles of matter are very very small.
  3. The force of attraction between the particles of matter is called intermolecular force of attraction.

States of Matter:-

  1. Solids - have fixed and rigid shape, definite volume and have rigidity and incompressibility.
  2. Liquids - have fluidity, definite volume,low compressibility and no definite shape. 
  3. Gases - have fluidity,high compressibility and no definite shape and volume.
Total Views: 736

Related FAQs

Q. What is the chemical name of dry ice ? why is it called dry ice ? How is it prepared ?

Ans: The chemical name of dry ice is sold carbon dioxide. Solid carbon dioxide changed directly into gaseous state when the pressure becomes 1 atm. or less. This is why solid carbon dioxide is also called ... read more

Q. Define sublimation. Give two examples of substances that sublime. Mention a situation from your daily life where you observe this process

Ans: Sublimation is the process on which a solid changes directly into gas without changing into liquid or vice versa. Examples:- Ammonium chloride, Iodine. And both changed from solid to gas directly wh... read more

Q. How temperature in the celcius and Kelvin scale are related ? Convert 375K to celcius scale.

Ans: Relation between temperatures in celcius and Kelvin is: Temperature in Kelvin= (273+ value in celcius) So, 375K= 273 + value in celcius or value in celcius = (375 - 273)?C ... read more

Q. While boiling the water, a student observed that temperature remains constant at 100 degree celcius till whole of water vaporises. Explain.

Ans: It is because the heat supplied is used to change the liquid state into gas or vapour formed by overcoming the forces of attraction between the particles. The boiling point of water is 100oC. It is th... read more

Q. Which of the following two will give you more severe burns and why? a) Steam at 373 K b) water at 373K

Ans: The particles in steam at 373K have more energy than water at the same temperature. This is because, particles in steam have absorbed extra energy in the form of latent heat of vaporization. So, when ... read more

Q. What is evaporation ? List the factors which affect the rate of evaporation and explain their effects on it.

Ans: Evaporation is the phenomenon in which a liquid changes into vapour at any temperature below it's boiling point. Factors affecting evaporation:- Temperature:With increase in temperature, more no.o... read more

Q. The smell of hot sizzling food reaches you several meters away, but to smell the cold food you have to go close. Why?

Ans: Particles of matter are continuously moving. They possess  the  kinetic  energy.  As  the  temperature  rises, particles move faster. Thus, particles that carry smel... read more

Q. After rains, the rain drops dry away easily on a sunny day or on a cloudy day? Give reasons.

Ans: After rains, rain drops will dry easily on a sunny day, as the temperature is higher in sunny day, evaporation increases. On a cloudy day temperature of the surrounding is low  due to humidity ev... read more