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cam875
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can somebody tell me all the easiest ways to generate heat, it doesn't have to be a lot but some. thanks in advance.
When you say ''generate heat', do you mean a process that transfers thermal energy to the environment?[/cam875 said:can somebody tell me all the easiest ways to generate heat, it doesn't have to be a lot but some. thanks in advance.
Although it would be practically difficult to do with an individual atom, the best method for a fluid would be to run a high current through a long coil of wire made from a material with a high resistivity. This is the same principle through which electrical heaters and incandescent light bulbs work.cam875 said:if I wanted to energize a particle or atom by applying heat to it what is the best way to do that to the particle/atom.
Hootenanny said:Although it would be practically difficult to do with an individual atom, the best method for a fluid would be to run a high current through a long coil of wire made from a material with a high resistivity. This is the same principle through which electrical heaters and incandescent light bulbs work.
I suggested using a heating element because the OP specifically mentioned the process of heat transfer. Of course photon excitation would be more straight forward, but then that would heat transfer.DeShark said:Why not excite the molecules directly rather than heating up a metal object and then transfering this energy to the water. i.e. use a microwave?
I'm sorry but I really can't let this slide (this is a pet hate of mine), heat is not the same as energy. Heat is more analagous to mechanical work than energy.DeShark said:Energy = heat essentially
cam875 said:well how does the sun produce heat and light, does it have some source of power?
Hootenanny said:I'm sorry but I really can't let this slide (this is a pet hate of mine), heat is not the same as energy. Heat is more analagous to mechanical work than energy.
cam875 said:well how does the sun produce heat and light, does it have some source of power?
Whilst I agree that the OP incorrectly used heat as a synonym for internal energy, I cannot agree that we should not be correct in our responses simply because it is easier. The distinction between heat and internal energy is one which becomes increasing blurred, not just in the general population but also is the educational system. Many physics high school (and even undergraduate) students think of heat and internal energy as the same quantity. Whilst there isn't too much of a problem at the elementary level, once one begins to study thermodynamics the distinction between heat and internal energy is an important concept and the reason why we have two different terms.DeShark said:But isn't it much easier to be slightly less technically accurate for the above purposes?
I would have to disagree with that, instead I would say something like "The first law is a statement of the principle of conservation of energy and says that the internal energy of a system is the sum of the heat added to the system and the work done on the system.".atyy said:"The first law states that both work and heat are forms of energy, and that the total energy is conserved."
Kardar, Lecture 1:
http://ocw.mit.edu/OcwWeb/Physics/8-333Fall-2005/LectureNotes/index.htm [Broken]
atyy said:"The first law states that both work and heat are forms of energy, and that the total energy is conserved."
Kardar, Lecture 1:
http://ocw.mit.edu/OcwWeb/Physics/8-333Fall-2005/LectureNotes/index.htm [Broken]
There are a lot of confused thoughts thrown together there, but the answer to the last question is yes, the sun will eventually run out of fuel and die.cam875 said:ok I from one of the previous posts in this thread there is a lot of talk about different kinds of atoms being used in the process of radiation and everything that the sun uses. But since matter is never created or destroyed do these atoms leave the sun when there used up and travel through space to Earth or other planets and different things or do they stay and keep returning the process, and thus the sun can keep using the same matter over and over again. Because if the matter is used up or leaves the area of the sun wouldn't it eventually run out of a source of materials and basically die.
cam875 said:so where does the matter being used up in the chemical reaction that causes the sun to do what it does go since matter can't be destroyed? or is it converted to energy like e=mc^2 and that's wat gives us light and heat.
Also when do scientists expect our sun to die? and if it does do they have a plan to keep our existence going?
One of the easiest ways to generate heat without using electricity is by using a fire pit or a wood-burning stove. Burning wood releases heat energy, providing warmth and comfort.
Some of the fastest ways to generate heat include using a space heater, heating pad, or hot water bottle. These devices can quickly produce heat and provide immediate warmth.
Yes, there are several ways to generate heat using renewable energy sources such as solar panels, geothermal heating systems, and biomass boilers. These methods use natural resources to produce heat, making them more sustainable options.
Yes, there are alternatives to burning fossil fuels for heat generation. Some examples include using heat pumps, solar water heaters, or electric heating systems. These methods are more environmentally friendly and reduce our reliance on non-renewable resources.
To make your home more energy-efficient when generating heat, you can insulate your walls and windows, use a programmable thermostat, and seal any air leaks. These measures can help retain heat and reduce energy consumption, making your heating system more efficient.