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When a substance cools, its particles lose energy and move closer together, leading to a decrease in volume. This is because the decrease in temperature causes the particles to move more slowly and occupy less space.

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Q: What happens to the volume of a substance when it cools?
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Continue Learning about Physics

What happens to the mass of the volume is tripled?

If the volume is tripled, the mass will stay the same as long as the substance remains constant. Mass is an intrinsic property of matter and is not affected by the volume it occupies. The density of the substance will decrease as the volume increases.


What happens to density when you keep the volume the same and increase the mass of the substance?

When you keep the volume constant and increase the mass of a substance, the density of the substance will also increase. Density is calculated as mass divided by volume, so if volume stays the same and mass increases, density will increase as well.


What happens when a substance undergoes thermal expansion?

When a substance undergoes thermal expansion, its particles gain energy and move farther apart, causing the substance to increase in volume. This increase in volume is due to the increased average kinetic energy of the particles, leading to the substance taking up more space.


What happens to density of a substance during thermal expansion?

Thermal expansion is the tendency of matter to change in volume in response to change in temperature. During thermal expansion, the density of a substance decreases as its volume increases. Volume is the space occupied by a body. So, when a substance expands on heating, it will occupy more space or will have more volume. But its mass does not change because the amount of matter contained in a body cannot change. Therefore, mass divided by increased volume gives a decreased density.


What happens to the density of a given substance if you increase the amount of substance that you have?

The density of a substance remains constant regardless of the amount of the substance. Density is an intrinsic property of a material and is determined by its mass and volume. Increasing the amount of substance will only change the mass and volume proportionally, thus keeping the density constant.