Question

effects of pressure and temperature on physical nature of matter

Answer 1

effect of change in temperature.
- the temperature effect on heating a solid varies depending on nature of the solid and the conditions required in bringing the change.
- on increasing the temperature of solids the kinetic energy of the particle increases. which overcomes the force of attraction between the particles thereby solid melts and is converted to a liquid.
- the temperature at which a solid melts to become a liquid at the atmospheric pressure is called its melting point.
- the melting point of ice is 273. 16k.
- the process of melting that is change of solid state into the liquid state is also known as fusion.

effect of change of pressure.
- increasing or decreasing the pressure can change the state of matter. applying pressure reducing temperature can liquefy gases.

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