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In glass the atoms are quite close together, and so can transfer heat (in the form of vibrations of atoms) from one to another.

Styrofoam is mostly trapped air, and in air the atoms are far apart, so the transfer of heat is much slower.

It is significant that the air is trapped, because if it could flow, that flow of air would carry heat,

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12y ago

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What type of cup keeps water warm the longest-plastic paper styrofoam or glass and why?

Styrofoam because it has a thick layer and is a good insulator.Paper and plastic are could alternatives but Styrofoam would work better, therefore glass would be the worst one to use because it would only keep it warm for a couple of minutes.


Is styrofoam insulator or conductor?

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Hot cocoa will stay hotter for longer in a glass compared to a styrofoam cup because glass has better insulating properties than styrofoam. Styrofoam is a poor insulator, allowing heat to escape more quickly.


Will a metal cup or a styrofoam cup keep the hot water warm after a short time?

A metal cup would likely keep the hot water warmer for a longer period than a styrofoam cup due to its superior insulating properties. Metal is generally a better conductor of heat, so it is able to retain heat better than styrofoam, which is a poor insulator.


Is glass a better insulator than styrofoam?

No, styrofoam is a better insulator than glass. Styrofoam has a lower thermal conductivity and traps air pockets within its structure, which helps to reduce heat transfer. Glass, on the other hand, is a poor insulator because it has higher thermal conductivity and allows heat to pass through more easily.


Is glass a better conductor of heat than water?

No, water is a better conductor of heat than glass. Water has a higher thermal conductivity, allowing it to transfer heat more efficiently than glass. Glass is a relatively poor conductor of heat compared to water.


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Is glass a conductor or insulator of electricity?

Glass in a molten state is a conductor of electricity. When glass turns to a solid state it becomes an insulator.Basically, glass in a window or a test tube would be the solid state and so it is a insulator of electricity.


Is Styrofoam a good electrical conductor?

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