Question

What do you understand by interconversion of different states of matter and how are these changes brought about ?

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Answer 1

Answer:

The phenomenon of the change of matter from one state to another and back to original state is known as interconversion of the sates of matter. Matter can be changed from one state to another by changing temperature or pressure. When heat energy is supplied to ice it changes into water and then to vapor.

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Answer 2

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Question:-

What do you understand by interconversion of different states of matter and how are these changes brought about ?

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Answer:-

The process of change of matter from one state to another is called interconversion of states of matter. The states of matter can be changed by changing temperature and pressure.

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• By changing temperature:

→By increasing temperature, the solid can be changed into liquid and liquid can be changed in gas. This is because on increasing temperature, the kinetic energies of the molecules increase and they can move freely. The reverse changes occur on cooling.

→For example, ice changes into liquid water at 0°C and water changes into steam at 100°C (under normal pressure).

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• By changing pressure:

→When the pressure is lowered the liquid starts boiling at a lower temperature and changes into gaseous state. Similarly by applying high pressure, a gas can be liquefied.

→For example, Carbon dioxide can liquefied by applying a pressure of 70 atmosphere under normal temperature.

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