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When atoms and molecules change temperature they change speeds. Because when (most) materials heat up their molecules vibrate more and take up more space.
Wiki User
∙ 8y ago
Wiki User
∙ 10y agoMaterials change state with temperature based on the speed and distance between their molecules. As a substance is heated, the energy transfers into the molecules cause them to move faster. This higher rate of movement allows for them to "stretch" the bonds between them and move further apart thus dropping the density of the substance. Eventually, with enough energy, the bonds between the molecules move far enough apart that the density decreases to the point where the substance is no longer solid. In a gaseous state, the molecules of a substance have broken most or all bonds and are very independent. The opposite occurs when heat energy is taken away from a substance (cooling).
Wiki User
∙ 8y agoMost materials expand with increasing heat, but there are a handful which (over a certain temperature range) will expand as the temperature lowers. Water ice is the commonest example.
As to the why, adding thermal energy to the mass, will add energy to the individuals in that mass. Thus in the more energetic behaviourof the individuals, the volume of the whole will tend to expand.
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What happens when you heat something?
Particles inside that "something" start to vibrate when they receive the thermal energy that you just applied. This may or may not cause that "something" to change its physical composition and state. It all depends on how much you heat you apply. Best Regards, Juanfe
If something is conductor of heat does it lose heat fast or slow-?
If something is a good conductor of heat then it will lose heat slowly. If something is a poor conductor of heat it will lose heat quickly.
Which change of state requires matter to lose heat energy?
Any change of state where something is condensing. So from a gas to a liquid or from a liquid to a solid. Also sublimation
What is the difference of heat capacity and latent heat?
Specific heat capacity (equation Q=mc��T) is the measure of the energy required in Joules to raise 1kg of a substance by 1.0 K (numerically equivalent to 1 C)Whereas, specific latent heat (equation Q=mL) is the amount of energy needed to change to the state of a substance either from solid to liquid, liquid to gas without changing its temperature.
If you heat a piece of metal with a hole in the center how will the size of the hole change?
It would get larger due to the expansion of the metal (see the related links)
Do particles change size due to heat or cooling?
no
This makes something hot?
heat
When something has an exothermic change does it increase in heat?
An "exothermic" reaction gives off heat.
Do gases or liquids change in size when taking the shape of its container?
No. Only heat, compression, or decompression can change the size of a gas/liquid.
When something is blue is that a physical or chemical change?
indicators of a chemical reacton include color change, heat given off, and gas produced. indicators of a physical change are phase changes, changes in shape, and changes in size. "Being blue" is not a change at all. It's a condition.
What is exo-thermic?
Something is exothermic if it releases heat (noting or pertaining to a chemical change that is accompanied by a liberation of heat).
What is the relation between heat and temperature?
The difference between heat and temperature is that heat is the amount of energy given off by a piece of matter, and Specific Heat indicates the amount of heat necessary to change 1g of something by 1 degree. Temperature measures change in heat.
What is the difference of heat and heat capacity?
Heat capacity is the amount of heat something can take before it changes temperature by a degree. If we use water as an example, it is said to have a high heat capacity as you need to heat it a lot before it changes temperature at all. Latent means not yet existing. Latent heat is therefore referring to the amount of heat it would take something for it to change state. Water is said to have a high latent heat of vaporisation. That means that it takes a lot of heat to vaporise water. While heat capacity talks about how much heat something can take, latent heat talks about how much heat something requires to cause a change. Similar concepts but they have slight differences.
When you cool something down is the mass or the volume changing?
Cooling something down does not generally change its mass, and may or may not change its volume. Cooling a gas will change the volume (if the pressure remains the same). When you cool something down, you most directly change its heat energy.
Why there is a Change in size of testicle?
Any change in the size of a testicle should be taken to a doctor. It could be something simple like a swelling from an infection. See Related Links below.
What are 3 physical features that change during the life of a star?
Within the lifetime of a star, its colour, its size, and the amount of heat it radiates will all change.
If something has a high specific heat capacity will it take a lot of heat to little heat to change its temperature?
For a given amount of energy, and a given mass, a material with high specific heat would have a smaller temperature change. /\T = E / ( m * cp )
