Question

pls answer it don't answer some thing nasty
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Answer 1

when the liquid of present in room it automatically cools down and turns into solid....

Answer 2

Answer:

1. As the liquid cools, it loses thermal energy. As a result, its particles slow down and come closer together. For example, solid water melts at 0°C and liquid water freezes at 0°C. During freezing, the temperature of a substance remains constant while the particles in the liquid form a crystalline solid.
2. When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.
3. Kinetic energy increases and the molecules vibrate faster about their fixed positions and the temperature increases. Naphthalene is in solid state at any temperature below its melting point. This process is called sublimation, where solid substances directly condenses to vapour without converting into liquid form.
4. Because when a substance is heated the kinetic energy of the particles (molecules/atoms) increases due to which they push each other farther than their mean position, therefore the distance between the particles(inter-molecular space) increases.
5. Condensation is the change of the physical state of matter from gas phase into the liquid phase and is the reverse of evaporation. The word most often refers to the water cycle. It can also be defined as the change in the state of water vapour to liquid water when in contact with a liquid or solid surface.

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