What is Thermal energy: Definition and 205 Discussions

The term 'thermal energy' is used differently, and often loosely, in different contexts. It refers to several distinct physical concepts, such as the internal energy, or as the enthalpy, of a body of matter and radiation; or as heat, defined as a type of energy transfer (as is thermodynamic work); or as the characteristic energy of a degree of freedom,




k


B



T


{\displaystyle k_{\mathrm {B} }T}
, in a system that is described in terms of its microscopic particulate constituents, where



T


{\displaystyle T}
denotes temperature and




k


B





{\displaystyle k_{\mathrm {B} }}
denotes the Boltzmann constant.

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  1. C

    Problem Relating Temperature and Thermal Energy

    Homework Statement An ideal gas is at 40°C. The gas is cooled, reducing the thermal energy by 35%. What is the new temperature in °C?Homework Equations I'm not sure there is one? The Attempt at a Solution Since, in an ideal gas, thermal energy is proportional to temperature, I multiplied 40°C...
  2. B

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  3. T

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  4. M

    Gas heated under constant pressure - thermal energy transferred?

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  5. N

    Transforming kinetic energy into thermal energy

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  6. T

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  7. DaveC426913

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  8. T

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  9. S

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  10. T

    Defining Thermal Energy: Understanding the Concept and Its Various Forms

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  11. W

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  12. F

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  13. K

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  14. F

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  15. A

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  16. D

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  17. S

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  18. C

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  19. C

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  20. L

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  21. C

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  22. B

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  23. X

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  24. S

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  25. K

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  26. P

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  28. U

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  29. E

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  31. K

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  32. A

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  33. H

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  34. W

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  35. M

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  36. H

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  37. W

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  38. D

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  39. H

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  40. A

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  41. S

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  42. C

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  43. N

    Thermal Energy I don't see why my method is wrong.

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  44. R

    Thermal Energy Transfer in a Boiling Water and Aluminum Pan System

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  45. C

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  46. H

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  47. S

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  48. F

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  49. D

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  50. D

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