Absolute zero on the Kelvin scale corresponds to
Correct answer: C. minus 273 degrees Celsius
- A. 0 degrees Celsius
- B. minus 100 degrees Celsius
- C. minus 273 degrees Celsius
- D. minus 373 degrees Celsius
Explanation
Zero kelvin is minus 273.15 degrees Celsius, the temperature at which the pressure of an ideal gas would extrapolate to zero and molecular motion reaches its minimum. Converting between the scales means adding or subtracting 273, since a kelvin and a Celsius degree are the same size. Every gas law formula requires absolute temperature.
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About Thermal Equilibrium and Heat
Thermal equilibrium means that bodies in contact have the same temperature and no net heat flows between them. The topic distinguishes heat from temperature, uses the zeroth law of thermodynamics, and covers heat transfer, specific heat capacity, thermal expansion and the conditions for reaching equilibrium.
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