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no they just get more energy and bounce around more and require more space so it seems like they get bigger but they aren't
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∙ 12y ago
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How do particles move when they are heated?
Particles move faster when they are heated.
Why do substances expand when heated?
Expansion means increase in the volume. When the substances are heated the K.e of the molecules is increased to a certain level that they exerts pressure on each other and collide with themselves. there negligible I.M.F begin to decrease more further and in this the molecules become widely seperated from eachothe hence, the substance is expanded.
What are two ways to change the state of a substance?
Substances can change state, usually when they are heated or cooled. For example, liquid water turns into steam when it is heated enough, and it turns into ice when it is cooled enough. The closeness, arrangement and motion of the particles in a substance change when it changes state.
What is an attraction between particles of the same substance called?
An attraction between particles of the SAME substance is called cohesion.
What is the mixture in which the particles of one substance are evenly mixed with the particles of another substance?
A homogenous mixture
When a substance is heated the particles do what?
accelerate
What two things happen to particles in a substance when the substance is heated?
molecular break down and gasification.
Are the particles in a solid linked?
Yes, they have tiny bonds that when the substance is heated break and the substance forms a liquid.
What happens to particles when condesing?
When particles are condensing in a substance, they combine into fewer, larger particles. These larger particles become the liquid's mass at its condensation or boiling temperature.
What does the particle theory suggest about the motion of the particles of solids-liquids and gases when they are heated?
When a solid, liquid or gas is heated the particles in the substance speed up and gets less dense. The particles also spreads out.
What does the particle theory suggest about the motion of the particles of solids liquids and gases when they are heated?
When a solid, liquid or gas is heated the particles in the substance speed up and gets less dense. The particles also spreads out.
In addition to speeding up what will heated particles do?
expand and grow frow larger
When a substance is heated what is happening to its particles?
As temperature increases, particle motion increases proportionally.
When substance is heated its particles expand and increase in size?
it expands and it becomes bigger
When a substance is heated its temperature increases. What happens to the energy of its particles?
The energy of its particles increases, so as the particles speed up move faster causing its heating up.
Substances expand when heated because the molecules?
According to the particle theory, particles move faster and further apart when exposed to higher temperatures. When a substance is heated, its particles acquire thermal energy. These energetic particles--which are constantly vibrating, even in solid form--become very excited, and move around much more, therefore requiring more space. The substance begins to increase in volume, creating larger spaces in between its molecules to accommodate the high-energy movement. This can also cause a change in state. Particles of substance in a solid state: vibrating slightly, densely packed together, little space between molecules. Compare to, Particles of substance in a gaseous state: vibrating excitedly, larger spaces in between molecules, easily compressible (due to empty spaces) If you were to cool a substance in gaseous form, the particles would begin to lose their thermal energy, and eventually change into a liquid state.
What happens to particles in a substance when its heated or cooled?
In a solid, the particles start to vibrate a lot.In a liquid, the particles begin to move around faster and faster.In a gas, the particles move extremely fast through the air.
