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Why do the densities of most substances derease with temperature?
Wiki User
∙ 12y ago
resistance of only electrolytes and semiconductors decrease wid temp.This is so coz in these substance due to increase in temp, the no. of ions and electrolytes in conduction band increases .Thats why resistance decreases.
Wiki User
∙ 11y ago
Wiki User
∙ 15y agoThe inertia mass of an object does not change with temperature -- an intrinsic properties. You need to elaborate more on the specific situation.
Wiki User
∙ 12y agoBecause as temperature increases, most substances expand, therefore their volume increases. The mass does not change. Density is the mass divided by the volume, therefore density decreases.
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Why do the densities of most substances decrease with an increase in temperature?
This happens because the mass of the rod stays the same, but its volume increases. The increase in the volume of matter withincreasing temperature is called expansion. When cooled down, mostmatter decreases in volume and increases in density.
What happens when the temperature of a substance decreases significantly A. Most substances will expand. B. Most substances will gain atoms. C. Most substances will contract. D. Most substances will d?
When the temperature of a substance decreases significantly most substances will contract.
What will happen if you swirl a mixture of substances with different densities in a centrifuge?
They will separate out, with the most dense moving furthest away from the centre of rotation.
Why temperature increases dencity decreases?
Density is mass divided by volume. For most substances, when the temperature increases the volume will increase (assuming constant pressure), but the mass will of course remain unaffected.
Does water expand when warmed?
Yes, like most substances - above 4 degrees centigrade. From 0 to 4 degrees centigrade, the volume of water will actually decrease while the temperature increases.
How do water's relative densities as a solid and a liquid differ from that of most substances?
you cant.
Why do the densities of most substances decrease with an increase in temperature?
This happens because the mass of the rod stays the same, but its volume increases. The increase in the volume of matter withincreasing temperature is called expansion. When cooled down, mostmatter decreases in volume and increases in density.
What happens when the temperature of a substance decreases significantly A. Most substances will expand. B. Most substances will gain atoms. C. Most substances will contract. D. Most substances will d?
When the temperature of a substance decreases significantly most substances will contract.
When do most substances lose or gain energy?
Most substances lose or gain energy when their temperature changes.
What will happen if you swirl a mixture of substances with different densities in a centrifuge?
They will separate out, with the most dense moving furthest away from the centre of rotation.
How does waters relative densities as a solid and a liquid differ from that of most other substances?
Water has a lower density as a solid than it does as a liquid. In the vast majority of substances are denser as solids than as liquids.
How can you separate substances of different densities?
Density Column to Separate Mixtures of SolidsYou could use a density column to separate mixtures of different solids by adding substances that have different densities. Then you would add in the solids, which would land or stop at a substance.
How do water's relative densities as a solid and a liquid differ from that od most other substances?
Ice floats. Most other substances are denser in the solid state.
How do water's relative densities an a solid a liquid deffer from that most other substances?
Solid water, ice, is less dense than liquid water and floats on top. The solid state of other substances is more dense than the liquid state and will sink in the liquid.
What are two substances that are solids and that are at room temperature?
Plastic, most metals (aluminum, tin, copper, etc.)
What is the avarage temperature of mercury?
Like most other substances, mercury takes up the temperature of its surroundings, so its average temperature must be room temperature, unless you put it into somewhere hot or somewhere cold.
How do waters relative densities as a solid and a liquid from that of most other substances?
The solid state of water is less dense than its liquid state, which is why ice floats on water. The solid state of nearly all other substances is more dense than the liquid state and sinks in the liquid state.
