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What change that needs heat in order to take place?
An example of a change that requires heat to take place is melting. When a solid substance is heated, the heat energy causes the particles to move faster and overcome their attractions, resulting in the solid turning into a liquid.
What happen in terms of kinetic theory when you heat a substance?
When you heat a substance, its kinetic energy increases, causing the particles to move faster and further apart. This leads to an increase in the substance's temperature and potentially a change in state, such as melting or boiling.
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.
Is adding heat to a substance makes it molecules move slower?
No, adding heat to a substance causes its molecules to move faster, not slower. When heat is applied, the energy increases the kinetic energy of the molecules, leading to more vigorous motion. This is why heating a substance can result in changes such as melting or boiling, as the increased molecular movement overcomes intermolecular forces.
What happens to the molecules of a substance when heat is added to it?
When you heat molecule you give them energy in form of motion.Lets take CO2 molecule. When you heat it its velocity increases. Particles start flying faster. Second thing that happens is that bonds O-C-O starts vibrate more rapidly and stronger (at some point thous vibrations can torn apart molecule)So two things happen to molecule when you heat them:You increase theyr velocityYou increase vibration of bondsthe molecules start 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.
Does the amount of heat in a substance depend on the motion of the molecules?
Yes, the amount of heat in a substance is related to the motion of its molecules. Heat is a form of energy that corresponds to the motion of molecules within a substance. The more heat a substance has, the faster its molecules move.
What change that needs heat in order to take place?
An example of a change that requires heat to take place is melting. When a solid substance is heated, the heat energy causes the particles to move faster and overcome their attractions, resulting in the solid turning into a liquid.
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.
Why a hotter substance cools faster?
A hot substance will pass on heat to a substance at a cooler temperature. If it was surrounded by an even hotter substance it would be "given" heat. Heat can only flow from hotter to colder, just as water flows from higher to lower ground. If the temperature difference between the substances is great, then heat will pass more quickly, but if the difference is very slight, then the flow of heat will be very much slower.
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.
When a substance loses heat energy?
When a substance loses heat energy, its temperature decreases as the molecules within the substance slow down. This can lead to changes in physical state, such as freezing or condensation, depending on the substance. The amount of heat energy lost can be calculated using the substance's specific heat capacity and the change in temperature.
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 heat thermal energy will the particles move faster?
the hotter it is, the faster they are moving
