Question

Give reason for the following:

All temperatures in the absolute (Kelvin) scale is in positive figures.

Answer 1

The advantage of the Kelvin scale is that it makes the application and use of gas laws simple. Of more significance is that all values on the scale are positive, removing the problem of negative (-) values on the Celsius scale.

Answer 2

All temperatures on the Kelvin scale are in positive figures.
The temperature -273°C = OK [Absolute zero or zero Kelvin]
Hence it may be negative or positive on Celsius scale, it is always positive on Kelvin as

0°C = 0 + 273 = 273K

30°C = 30 + 273 = 303 K

– 70°C = – 70+ 273;= 203 K

– 273°C = – 273 + 273 = 0 K