0
What is a device that transfers thermal energy from a cool region to warm?
Wiki User
∙ 10y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What it thermal energy?
Since the late 60s/early 70s, heat has been considered as energy in transit from a body at a higher temperature to one at a lower temperature. Heat is directly comparable to work, where work describes energy in transit from one form into another.So, heat and work both describe transfers of energy, not energy itself.We can use water as an analogy. When it's vapour, we call it a 'cloud', when it condenses, we call it 'rain', when it's on the ground, we call it a 'puddle'. Well, heat and work are equivalent to 'rain' -water in transit between being a cloud and being a puddle!
What is the transfer of thermal energy by the collisions between particles of matter?
In loose terms, increased energy associated with increased temperature is heat, or thermal, energy. We say heat flow from hot to cold and that is true. The simple and common mechanism for this heat to move is through the collisions between the more energetic atoms and molecules on one region with the less energetic atoms and molecules in a neighboring region. That is a simple explanation appropriate to simple materials in simple situations. The thermal conductivity of a material is a quantitative measure of how much heat will flow through a material per unit time for a given temperature gradient. In the simplest materials the mechanism of heat transfer may be described at the microscopic level as transfer of energy through collisions between atoms and molecules. In a higher temperature region region the atoms and molecules have more kinetic energy than in a low temperature region. In general, when two objects collide, the higher kinetic energy object transfers energy to the lower kinetic energy object. (This is more complicated than it sounds.) Thus, as particles collide with neighboring particles and the process is repeated billions of times with billions of particles, they tend towards an average kinetic energy. For two adjacent regions, one hot and one cold, the kinetic energy moves from the hot to the cold in an average sense. This is called thermalization or thermal equilibration. Heat energy, or thermal energy, has moved from the hot region to the cold region. Thermal energy is more than kinetic energy and also includes potential energy between atoms and molecules and may also include chemical and electronic energies. Nonetheless, it is a fundamental law of thermodynamics that two objects left in thermal contact will eventually arrive at the same temperature and that temperature will be somewhere between the initial two temperatures. In simple materials, it is the collisions between atoms that serves to transfer the kinetic energy (some of which may become potential or another form of energy) so that the temperature of a material moves toward a uniform temperature. The basic answer to the question is that collisions between particles allow the transfer of energy in matter. There is a caveat. When the matter is not simple, such as in a conducting metal material, there is a strong interaction between the electronic structure and the movement of the constituent atoms. The idea of "collisions" is inadequate since there is not one atom interacting with one other atom but the motion of all atoms are interconnected through the electronic structure. Indeed, the concept of collisions at the atomic level must be employed with care since it is a concept derived from or macroscopic experience with macroscopic objects.
What is conduction?
There are two kinds of conduction: thermal conduction and electrical conduction.In thermal conduction, thermal energy (heat) transfers through a substance from a hotter region toward a cooler region. For example, when you dip a metal spoon into a cup of tea, the heat from the hot tea will conduct along the spoon so that the handle becomes warm, even though the handle is not in direct contact with the hot tea.In electrical conduction, free electrons pass through a substance, thus enabling an electric current.Some materials are better conductors than others. Most metals are good thermal conductors, and certain metals (copper, aluminum) are very good electrical conductors. When a material is an exceptionally poor conductor, we call it an insulator. Styrofoam is a good thermal insulator, and glass is a good electrical insulator.
What is the most energy that can be associated with emr region?
The gamma ray is the most energy that can be associated with the EMR region.
In which way does heat flow?
When a hotter/colder object touches the opposite heat of it, then the colder ones thermal energy will go up and the hotter ones thermal energy will go down until then have then same temperature.the cold air is pushed down and the hot air forced up.Answer'Heat' is defined as energy in transit from a higher temperature to a lower temperature.
A device that uses an outside energy source to transfer thermal energy from a cool area to a warm area is called a?
A device that transfers thermal energy from a cool region to a warm region is called a Heat Pump. Refrigerators are an example of this. So are many air conditioning units.
A device that heats your home by transferring thermal energy from a region of low temperature to a region at a higher temperature is a?
I think you're talking about a heat engine or heat mover..
Heat from the equator region moved toward the poles in what process of thermal energy transfer?
Convection
What it thermal energy?
Since the late 60s/early 70s, heat has been considered as energy in transit from a body at a higher temperature to one at a lower temperature. Heat is directly comparable to work, where work describes energy in transit from one form into another.So, heat and work both describe transfers of energy, not energy itself.We can use water as an analogy. When it's vapour, we call it a 'cloud', when it condenses, we call it 'rain', when it's on the ground, we call it a 'puddle'. Well, heat and work are equivalent to 'rain' -water in transit between being a cloud and being a puddle!
What is transfer of thermal energy by the movement of a fluid?
This is called convection. One part of the fluid is heated and when it moves to a region of less energy it gives up some heat.
Does cold make air particles go close together?
Short Answer:Particles (atoms and molecules) at high temperature will transfer thermal energy (heat) to near by particles at lower temperature through collisions (bumping into neighboring particles).Explanation:We can say particles in one region are hot or cold depending on their temperature and that means they have more kinetic energy (hot) or less kinetic energy (cold) on the average. When we speak of thermal energy, we mean the kinetic energy that particles have as a consequence of their temperature. Particles are constantly moving and colliding with neighboring particles, so it is natural that those with greater kinetic energy will transfer that energy to those with less kinetic energy. That is why a region of a material that is at a higher temperature will cool and the neighboring region at lower temperature will warm. When that happens, we say that heat energy has gone from the warm region to the cool region. In everyday language, heat and heat energy and thermal energy are used to mean the same hing, energy of matter associated with temperature. If you study science, the terminology gets more specific and the term "heat energy" is not so much used.Comment: Energy can not be made. Energy can be transfered from one location to another and energy can be converted to thermal energy from other forms and back again. We say "energy is conserved" to mean that it changes form but is not created or destroyed.
What is the transfer of thermal energy by the collisions between particles of matter?
In loose terms, increased energy associated with increased temperature is heat, or thermal, energy. We say heat flow from hot to cold and that is true. The simple and common mechanism for this heat to move is through the collisions between the more energetic atoms and molecules on one region with the less energetic atoms and molecules in a neighboring region. That is a simple explanation appropriate to simple materials in simple situations. The thermal conductivity of a material is a quantitative measure of how much heat will flow through a material per unit time for a given temperature gradient. In the simplest materials the mechanism of heat transfer may be described at the microscopic level as transfer of energy through collisions between atoms and molecules. In a higher temperature region region the atoms and molecules have more kinetic energy than in a low temperature region. In general, when two objects collide, the higher kinetic energy object transfers energy to the lower kinetic energy object. (This is more complicated than it sounds.) Thus, as particles collide with neighboring particles and the process is repeated billions of times with billions of particles, they tend towards an average kinetic energy. For two adjacent regions, one hot and one cold, the kinetic energy moves from the hot to the cold in an average sense. This is called thermalization or thermal equilibration. Heat energy, or thermal energy, has moved from the hot region to the cold region. Thermal energy is more than kinetic energy and also includes potential energy between atoms and molecules and may also include chemical and electronic energies. Nonetheless, it is a fundamental law of thermodynamics that two objects left in thermal contact will eventually arrive at the same temperature and that temperature will be somewhere between the initial two temperatures. In simple materials, it is the collisions between atoms that serves to transfer the kinetic energy (some of which may become potential or another form of energy) so that the temperature of a material moves toward a uniform temperature. The basic answer to the question is that collisions between particles allow the transfer of energy in matter. There is a caveat. When the matter is not simple, such as in a conducting metal material, there is a strong interaction between the electronic structure and the movement of the constituent atoms. The idea of "collisions" is inadequate since there is not one atom interacting with one other atom but the motion of all atoms are interconnected through the electronic structure. Indeed, the concept of collisions at the atomic level must be employed with care since it is a concept derived from or macroscopic experience with macroscopic objects.
What is conduction?
There are two kinds of conduction: thermal conduction and electrical conduction.In thermal conduction, thermal energy (heat) transfers through a substance from a hotter region toward a cooler region. For example, when you dip a metal spoon into a cup of tea, the heat from the hot tea will conduct along the spoon so that the handle becomes warm, even though the handle is not in direct contact with the hot tea.In electrical conduction, free electrons pass through a substance, thus enabling an electric current.Some materials are better conductors than others. Most metals are good thermal conductors, and certain metals (copper, aluminum) are very good electrical conductors. When a material is an exceptionally poor conductor, we call it an insulator. Styrofoam is a good thermal insulator, and glass is a good electrical insulator.
Do thermal insulators conduct good heat?
No. The definition of an insulator is: something that inhibits the flow of energy (heat, light, electromagnetic, electric current) from one region of space to another. Therefore thermal (heat) insulators do not conduct heat.
What is conduction conduction?
There are two kinds of conduction: thermal conduction and electrical conduction.In thermal conduction, thermal energy (heat) transfers through a substance from a hotter region toward a cooler region. For example, when you dip a metal spoon into a cup of tea, the heat from the hot tea will conduct along the spoon so that the handle becomes warm, even though the handle is not in direct contact with the hot tea.In electrical conduction, free electrons pass through a substance, thus enabling an electric current.Some materials are better conductors than others. Most metals are good thermal conductors, and certain metals (copper, aluminum) are very good electrical conductors. When a material is an exceptionally poor conductor, we call it an insulator. Styrofoam is a good thermal insulator, and glass is a good electrical insulator.
What is the source of leakage current in a transistor?
The current of the minority charges (collector region) is the source of the leakage current. At higher temperature, this leakage current increases due to increase in thermal energy.
90 percent of the world's thermal springs are located in what region?
Netherlands
