Lower fixed point of Celcius scale:
Correct answer: D. 0°C
- A. 32°C
- B. 100°C
- C. 273°C
- D. 0°C
Explanation
The Celsius scale has an upper fixed point and a lower fixed point. The upper fixed point is 100°C and the lower fixed point is 0°C.
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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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