Absolute zero on the Kelvin scale corresponds to
- 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.