Question

when using the ideal gas law, pv = mrt, what system should you use when entering temperature values?
○ fahrenheit
○ kelvin
○ centigrade
○ celsius

Explanation:

The ideal gas law (\(PV = nRT\), note: the original problem has a typo, it should be \(n\) (moles) not \(m\)) requires temperature to be in an absolute scale. Kelvin is an absolute temperature scale (0 K is absolute zero), while Fahrenheit, Celsius (Centigrade is the old name for Celsius) are relative. Using Kelvin ensures the temperature value is proportional to the average kinetic energy of gas molecules, which is required for the ideal gas law's derivation and validity.

Answer:

Kelvin (the option with "Kelvin" text)