Heat?

Discussion in 'Physics & Math' started by Kumar, Jan 18, 2007.

  1. Kumar Registered Senior Member

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    Hello,

    Whether all type energies land into heat by dissipation or can be expressed by temperature of an object?

    As such, can heat be considered as "prime force/energy"?

    A dead person loses heat dissiate in atmospheric heat or mixed in "prime force/energy" if it is prime.

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  3. James R Just this guy, you know? Staff Member

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    "Heat" and "temperature" and "internal energy" are quite different things in physics.

    Temperature tells us something about the internal energy of an object. Heat, on the other hand, is not an innate feature of an object at all. Rather, it is a flow of energy into or out of an object.
     
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  5. Kumar Registered Senior Member

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    1,990
    Thanks. It is clear from following definitions;

    Considering properties of heat, does it not look alike prime energy?


    Whether all type energies land into heat by dissipation or can be expressed by temperature of an object?
     
    Last edited: Jan 19, 2007
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  7. John Connellan Valued Senior Member

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    As the laws of thermodynamics show, all types of energy ARE slowly being tranformed into heat. The amount of heat energy in the universe is always increasing. This does not mean that the temperature of the universe is increasing though!
     
  8. James R Just this guy, you know? Staff Member

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    The quote above is incorrect about the definition of heat:

    One way to think about heat is that it is "disorganised" energy - energy that you can't use for any useful purpose (other than to heat objects).

    There's an important law of physics called the Second Law of Thermodynamics which says that virtually every process that does something useful produces waste heat that cannot be recovered. In the (very) long run, this means that the universe will eventually suffer a "heat death" in which the only form of energy remaining is in the non-useful form of waste heat.
     
  9. Kumar Registered Senior Member

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    Frankly, previous quoted definitions also looked bit odd to me. I think above quote define better.

    Is it correct in previous definition;

    "That total energy is made up of not only of the kinetic energies of the molecules of the substance, but total energy is also made up of the potential energies of the molecules."

    How heat can be made up of potential energies of the molecules?

    In view of that energy can neither be created nor be destroyed but can be changed in to other form, it looks bit odd that heat energy is wasted. Is it not changed into other form..as increased motions in universe...changed environmental effects etc.

    Your above quote indicated heat as somewhat different from other energies and can have prominent role in future...so can be thought as prime ONE.

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  10. Kumar Registered Senior Member

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    Can we consider it as; heat is consolidated/transfered/stores in other energies and matters and can/will be ultimately converted into heat.

    I think heat is just diluted and concentrated---seprate or consolidated?
     
  11. Kumar Registered Senior Member

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    In brief, if you don't take otherwise, can heat(+absolute zero) be considered as "preasent everywhere, capable of effecting or mixing with product of other energies/matters and a source to everything?
     
    Last edited: Jan 20, 2007
  12. Kumar Registered Senior Member

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    1,990
    Something interesting;

    "Ultimate" can be heat/temperature.

    Whether above 2nd quote is correct?
     

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