Question

B. Answer the following questions. 1. What is melting? 2. What is freezing? 3. What is vaporisation? 4. What is condensation 5. What is sublimation?​

Answer 1

Answer:

1)- Melting is the process in which any solid substance has been treated at high temperature to get it's liquid state.

2)-Freezing is the process in which any liquid state when treated at low temperature to get it's solid state.

3)-Vaporisation is the process in which any liquid state becomes in gaseous state.

4)-Condensation is the process in which gas state becomes in liquid state.

5)-Sublimation is the process in which a substance convert solid into gaseous form without converting in liquid state.

Answer 2

1.Melting is the process by which a substance changes from the solid phase to the liquid phase. ... Melting occurs when the internal energy of a solid increases, usually through the application of heat or pressure, such that the molecules become less ordere

2.Freezing is the process in which a liquid changes to a solid. It occurs when a liquid cools to a point at which its particles no longer have enough energy to overcome the force of attraction between them. The freezing point of a substance is the temperature at which it freezes. The freezing point of pure water is 0°C.

3.Vaporization, conversion of a substance from the liquid or solid phase into the gaseous (vapour) phase. If conditions allow the formation of vapour bubbles within a liquid, the vaporization process is called boiling. Direct conversion from solid to vapour is called sublimation.

4.Condensation is the change of the physical state of matter from the gas phase into the liquid phase, and is the reverse of vaporization. The word most often refers to the water cycle. Wikipedia

5.Sublimation, in physics, conversion of a substance from the solid to the gaseous state without its becoming liquid. An example is the vaporization of frozen carbon dioxide (dry ice) at ordinary atmospheric pressure and temperature. The phenomenon is the result of vapour pressure and temperature relationships.

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