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When air is heated its density decreases when we heat air the gas molecules get excited and get kinetic energy due to which they collide with one another and after each collision they scatter in different directions due to which their density decreases.I am sure you will be satisfied.Be sure yo open www.alislam.org for more knowledge.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoThe temperature DECREASES as air expands and here is why:
For all practical purposes, "temperature" is the average amount of heat (energy) per molecule. Hence the faster molecules are moving, the higher the temperature. When a pocket of air (assume it has a fixed amount of molecules) expands, then those molecules are not compressed into such a tight space. That causes them not to "collide" as much. It is the "collisions" and friction that create "heat" (think what happens if you rub your hands together). Thus less collisions mean less energy and consequently a lower temperature.
Wiki User
∙ 10y agoIf two objects are moving at the same speed, then the one with more mass has
more kinetic energy.
That does not mean that any object with more mass has more kinetic energy.
It depends on both the mass and the speed of the object. A slug fired from a
rifle has more kinetic energy than a Bowling ball on its roll toward the pocket.
Wiki User
∙ 10y ago1) If you heat up water, for example from 20 degrees to the boiling point of 100 degrees, the kinetic energy of its particles will increase.
2) Changing liquid water that is at a temperature of 100 degrees to vapor, also at 100 degrees, doesn't change the kinetic energy. Rather, it increases the particles' potential energy.
Wiki User
∙ 13y agoDepends on what you are asking. When heated do the number of particles increase? no. When heated their energy increases.
Wiki User
∙ 8y agoOther things being equal (i.e., if the mass doesn't change), a larger speed will result in more kinetic energy - and to get more kinetic energy, you need to increase the speed.
Wiki User
∙ 13y agoThe temperature increases.
Wiki User
∙ 6y agoThe kinetic energy increase.
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Does the movement of particles increase or decrease while freezing?
increase
Does particles in gases expand when heated?
This is because when heat is applied to particles, they gain energy, therefore they travel faster and space out. The volume will increase though the density will decrease. So matter will always expand when exposed to heat.
Does iron decrease or increase when heated?
If we talk about weight, then no change at all. If talking about size, then it will increase slightly. Extra info: There is only one element that actually decrease in size when heated, Sulfur. All other elements will increase in size when heated up.
When substance is heated its particles expand and increase in size?
it expands and it becomes bigger
What particles make up a very hot liquid?
The kinetic theory of matter can be used to explain how solids, liquids and gases are interchangeable as a result of increase or decrease in heat energy. When an object is heated the motion of the particles increases as the particles become more energetic.
Does the movement of particles increase or decrease condensation?
Decrease
Does viscosity tend to increase or decrease as a liquid is heated?
Viscosity tends to decrease as a liquid is heated. The particles making up the liquid move faster so they slide around each other more quickly, becoming more fluid.
Does the movement of particles increase or decrease vaporization?
Increase
Does the movement of particles increase or decrease freezing?
increase
Do the movement of particles increase or decrease during condensation?
decrease
Why do gases expand on heating?
When particles are heated up they gain energy. This causes them to move more and spread out. This causes the volume to increase and the density to decrease.
Does the movement of particles increase or decrease while vaporating?
Increase
Does the movement of particles increase or decrease while freezing?
increase
Does particles in gases expand when heated?
This is because when heat is applied to particles, they gain energy, therefore they travel faster and space out. The volume will increase though the density will decrease. So matter will always expand when exposed to heat.
Does iron decrease or increase when heated?
If we talk about weight, then no change at all. If talking about size, then it will increase slightly. Extra info: There is only one element that actually decrease in size when heated, Sulfur. All other elements will increase in size when heated up.
Does the movement of the particles increase or decrease wghile freezing?
The movement of particles decrease as temperature decreases, and vice versa. Therefore, they will decrease while freezing.
What happens to the speed of gas when heated?
The speed of the gas particles will increase as they are heated. That is why the pressure in a container increases. The particles are hitting the walls of the container with more force as they are heated.
