Question

Which of the following can be used to measure temperature accurately

Celsius
Fahrenheit
Kelvin
All of these are correct

Answer 1

Any of those terms can be converted to either of the other terms, so either term is correct. People are accustomed to everyday temperatures in Fahrenheit. The ideal gas law specifies that

P V = N R T where T is in Kelvin which is Celsius + 273 deg.