Question

4. What are the two fixed points in the Celsius scale?​

Answer 1

THE ANSWER IS:-

To define the Celsius temperature scale two "reliable" temperatures are used. These are, the melting point of pure ice, which gives us the lower fixed point of the scale and the boiling point of pure water (at atmospheric pressure) which gives us the upper fixed point.

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Answer 2

Answer:

In the Celsius scale, the freezing point of water is 0 oC and the boiling point is 100 oC, so that there are 100 Co between the two fixed points. (When Celsius originally introduced his scale, he set the temperature of boiling water as 0, and the temperature of melting ice as 100. That was reversed within a few years!)

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