Question

part 1 of 2
when performing a gas law calculation, ____.

the temperature must be converted to kelvin
either °c or k can be used
the temperature must be in °c

Explanation:

Gas laws (like ideal gas law, Boyle's, Charles's, etc.) require temperature to be in Kelvin because the gas law equations are based on absolute temperature. Celsius is a relative scale (based on water's freezing/boiling), while Kelvin is absolute (starts at absolute zero). Using °C would lead to incorrect results (e.g., negative temperatures don't make sense in gas law contexts where temperature is proportional to kinetic energy). So temperature must be converted to Kelvin for gas law calculations.

Answer:

the temperature must be converted to Kelvin