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Does cooling cause particles to move around?
More videos on YouTube An increase in the motion of the atoms competes with the attraction between atoms and causes them to move a little further apart. Cooling a solid decreases the motion of the atoms. A decrease in the motion of the atoms allows the attractions between atoms to bring them a little close together.
What happens to the movement of particles on cooling?
If a gas is cooled, its particles will eventually stop moving about so fast and form a liquid. This is called condensation and occurs at the same temperature as boiling. Hence, the boiling point and condensation point of a substance are the same temperature.
How do air particles move and interact with each other?
Air particles do work when they crash into things. Air particles push on each other, on you, on the walls of containers, and on everything else around them. You can”t change the mass of an air particle, but you can change its speed. By making a particle go faster, you increase its kinetic energy.
Why does moving air feel colder than moving air?
Still air (at temperature lower than that of skin) extracts heat from your skin by free convection between skin surface & near by air molecules this results in rise of temperature of nearby air molecules but when air starts blowing the hot air molecules near your skin is displaced by incoming fresh air molecules.
How does moving particles of a solid increase heat energy?
The moving particles of a warm soild material can increase the heat energy of the particles in a cooler solid material by transferring it directly from one particle to the next. Since particles are closer together, solids conduct heat better than liquids or gases.
How does convection transfer heat to the particles?
Convection transfers heat energy through gases and liquids. As air is heated, the particles gain heat energy allowing them to move faster and further apart, carrying the heat energy with them.
How does temperature affect the movement of particles?
The particles are held together too strongly to allow movement from place to place but the particles do vibrate about their position in the structure. With an increase in temperature, the particles gain kinetic energy and vibrate faster and more strongly.