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Course: Science — Second Preparatory
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Internal Energy and Temperature

Science — Second Preparatory

Internal Energy and Temperature

The difference between internal energy and temperature

The difference between internal energy and temperature

Comparison Internal energy Temperature
Definition Total kinetic and potential energy of all the particles A measure of the average kinetic energy of the particles
Depends on the mass?
  • Yes
  • it increases with the number of particles
No
Unit Joule (J) Degree Celsius (°C) or kelvin (K)
Example→a large pot with 5 kg of water at 50 °C has more internal energy than a cup with 0.2 kg of water at 80 °C, because the pot contains far more particles, even though the water in the cup has the higher temperature.
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