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The entropy (order of the matter) increases. Kinetics, the measurement of movement, states that when matter (atoms and molecules) are heated, they move faster and begin to collide with one another or, against the boundaries of the system they are in (flask, earl-meyer glass). Also, at certain temperatures, they will ignite, much like in the movies when a fast moving object enters the Earth's atmosphere from space.
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Does warm air contract?
Heat is caused by molecules vibrating and hitting one another. The hotter the air the more the molecules vibrate and the bigger space each molecule needs. This causes the air to expand and its density to fall. As air cools, the vibrations slow down and the molecules need less room. This causes the air to contract and its density will go up.
What happens to the water molecules as they start to heat up?
Heating water molecules causes them to move faster and faster. Water when cool is in a way (sticky). When heated the water molecules are moving far too quickly stick together. The heated water molecules become less dense and may stick to air molecules. Floating into and combining with the atmosphere.
Why does cold air make hot air move in physics?
Actually, both cold air & hot air move. Imagine 3 laser beams are focused to converge on a single point in a typical room with normal air temperature. When the lasers are switched on, the beams converge and energize the air molecules that are in the convergence zone. As the photons in the light collide with the air molecules, the air molecules absorb energy, vibrate/oscillate, & collide with other nearby air molecules very rapidly. This highly kinetic energy state is what we call heat (i.e. energy in the form of heat). Because the heated molecules are colliding with other molecules, the distance between the heated molecules increases. This results in a lower density region (where heated air molecules are) within a higher density zone (where the cooler air molecules are). Gravity pulls on each of the molecules equally, however the denser cooler air is pulled downward to displace the warmer less dense air. To visualize this easier, imagine a drop of oil is injected into the center of a cup of water and the oil is less dense than the water. Eventually, gravity will pull the more dense water molecules below the oil molecules. As the more dense water displaces the less dense oil, the displaced oil moves upwards to the surface. Original Poster's Answer: -------------------------- Technically it is the hot air that makes the cold air move however that is the wrong terminology. Hot air rises in fluids due to convection currents. When air is heated it expands (as particles gain more kinetic energy) and therefore becomes less dense. It will then rise forcing the more dense air down. The more dense air then gets heated and becomes less dense and rises...thus the cycle continues. A real life scenario of this is why it is hotter in a sauna the higher up you sit.
Thunder is when what expands and contacts after a lightning strike?
air molecules
Which of these events happens first in Earth's polar regions A Denser water sinks B Water travels as a deep current C Water molecules move closer together D Cold air chills water molecules?
In polar regions of Earth, FIRST, cold air chills the water molecules.
What happens to air molecules when air is heated.?
the hot-air molecules bang on each other harder.
What happens to air molecules air is heated?
the hot-air molecules bang on each other harder.
What happens to the molecules of air when they are heated?
they get exited and move faster than cold molecules
When the air in a balloon is heated what happens to the density?
When the air inside a balloon is heated, its density decreases. This happens because the air molecules gain energy and move farther apart, resulting in a decrease in the air's density.
When air is heated air pressure decreases because the molecules?
when air is heated ,air pressure decreases because the molecules are
What happens to sucrose molecules when heated?
new molecules starts to form
What happens to air heated by radiation?
When air is heated by radiation, the air molecules absorb the radiant energy and increase in kinetic energy, causing them to move more vigorously. This increased motion leads to expansion of the air, resulting in a rise in temperature.
What happen to the volume of the air as it is heated?
As air is heated, its volume typically expands. This happens because the heat increases the kinetic energy of the air molecules, causing them to move faster and spread out, which in turn leads to an increase in volume.
What happens when you heat air?
When air is heated, its molecules gain energy and move faster, causing the air to expand and become less dense. This expansion leads to a decrease in air pressure, as the heated air rises and cooler air moves in to replace it.
What happens To the mass of air in a balloon when it is heated?
When air inside a balloon is heated, the molecules move faster, causing the air to expand and the balloon to inflate. The total mass of the air inside the balloon remains the same, but the density of the air decreases as it becomes less compact.
What happens to the air when heated up?
When air is heated up, the molecules within the air gain energy and move faster, causing the air to expand and become less dense. This expansion leads to a decrease in air pressure and an increase in volume.
What happens to molecules when water is heated from 90 to 110 Celsius?
The liquid molecules are transformed in gas molecules.
