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Why does diffusion take place faster when you heat the substance?
Wiki User
∙ 13y ago
The acts as a catalyst to speed up the diffusion process, allowing the molecules to overcome it; the activation energy causes the reaction to proceed at the faster rate.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoAs temperature increases, the molecules undergoing diffusion speed up, making diffusion more rapid.
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How do electrons help in transfer of heat energy?
when a substance is heated,the molecules in that substance get heat energy. we know that all of the molecule in the substance having electrons. when substance is heated. electrons becoming high energetic.and they move faster and also energy will propagate though out the substance
True or False The less surface area the faster a substance will change from a solid to a liquid?
When a substance goes from a solid to a liquid, it is melting. Generally, it is easier to heat an object that has more surface area because it has more area being exposed to heat.
What does the specific heat of a substance?
The ability of a substance to hold heat.
What does specific heat of a substance represent?
The ability of a substance to hold heat.
Why does heating up a substance make it react faster?
Because when heat is added, the atoms vibrate faster, increasing the chance of them bumping against the opposite atoms in the reaction (also moving faster)
What happens to atoms of A substance when heat is added?
When heat is added to a substance, the molecules and atoms vibrate faster.
what is the modes of heat transfere?
radiation radiation travels at the speed of light, which is very quick diffusion is slow. convention is faster than diffusion.
The particles of a substance will move faster if what is added on to them?
If heat is added to it.
What happens to the molecules of a substance when it is melted?
the molecules vibrate, faster and faster as the heat increases then they become disordered
When heat is removed from a substance the particles start moving faster?
No, heat makes the particles move faster. If you remove the heat the particles will start moving slower as it cools down.
What is the relationship between the temperature and diffusion rate?
As temperature increases, the kinetic energy of the molecules increases, so the rate of diffusion also increases.
Why does heat go from a hot place to a colder place?
For simplicity, assume two solid blocks of the same material. Molecules in the hotter substance move faster on average; they will bounce against the molecules in the colder substance, transferring part of their energy. Energy is also transferred through bounces from the cold substance to the hot substance - but on average, more energy will be transferred from the hot to the cold substance, simply because on average, the molecules move faster.
What is the fastest heat transfer?
It depends on the medium of heat transfer. For solids, it is conduction heat transfer. For liquids and gases, it is convection heat transfer. for vacuum (no medium), it is radiation heat transfer.
Does convention occurs in solids?
Convection of mass cannot take place in solids, since neither bulk current flows nor significant diffusion can take place in solids. Diffusion of heat can take place in solids, but is referred to separately in that case as heat convection.
Which substance would heat up faster air water soil or sand?
Soil
Why land releases heat faster than water?
Water has a higher specific heat, and this is an intensive property of the substance itself.
If you place a cup of sand and a cup of water in the sun which one will heat up faster?
The sand will heat up faster.
