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When fluids expand when they are heated does their density increase?
Wiki User
∙ 13y ago
No. Remember that density is a ratio of mass compared to volume. If the volume increases without adding more mass, then the density would decrease. This is why hot air balloons rise.
Wiki User
∙ 13y ago
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Why does the heat rise in convection?
There is a general tendency for objects to expand when they get hotter - this includes air, and gases in general. As a result, they have less density (mass per unit volume); and objects with less density tend to float or rise.
Why do solids expand when heated even though their mass does not change?
BECAUSE the moncules are heated they expand because there gay and expand
What expands and how does that expansion indicates the temperature?
Solid,Liquids,Gases expand when heated. Heat makes the particle attraction low hence the space between the particles increase and the thing expand. The expansion is the increase in the moleculer space of substances.
As matter is heated what happens to the density of the matter?
In general, a solid object will expand when heated. That means that it's volume increases, but because the object's mass (weight) does not increase, the density is reduced. the equation is Mass/Volume.Like many rules however water (as ice) does not follow this exactly. Ice expands slightly as it cools below 70 K
What expands when it is heated?
Most substances expand when heated.
Why does the heat rise in convection?
There is a general tendency for objects to expand when they get hotter - this includes air, and gases in general. As a result, they have less density (mass per unit volume); and objects with less density tend to float or rise.
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.
When substance is heated its particles expand and increase in size?
it expands and it becomes bigger
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.
Why does convection happens?
convection happens because fluids become less dense and expand and riseas they are heated.
How does temperature affects the density?
Temprature affects the volume, since most objects expand when they are heated. And density is mass / volume.
Does temperature affects the density?
Temprature affects the volume, since most objects expand when they are heated. And density is mass / volume.
How the temperature affects the density?
Temprature affects the volume, since most objects expand when they are heated. And density is mass / volume.
When air is heated gases do what?
its pressure will increase if it is placed in a fixed container, or it will expand if it is free to do so
What is the relationship density and temperature?
Due to thermal expansion, as temperature increases, density decreases.There is no simple relationship. Usually, but not always, if a substance is heated, it will expand, thus decreasing its density.
What happens to a gas when you heated?
Applying heat to a gas will make it expand. If the volume of the gas is restricted (i.e. it cannot expand) then the pressure will increase.
Why do some substances change when they are heated or cooled?
A solid or liquid would not change in density because the volume would not change. The density of a gas would increase when cooled and decrease when heated provided the volume is allowed to change as a function of temperature. However, density of a gas is generally not measured because it is not a useful metric to use.* * * * *That is a rubbish answer.Almost all solids or liquids expand when heated. (Pure water under "normal" circumstances has an anomalous phase between 0 and 4 deg C). So heating will increase the volume thereby decrease the density.
