Here's why:
* RTP: RTP is defined as 20°C (293.15 K) and 1 atm pressure.
* Ideal Gas Law: The ideal gas law (PV = nRT) describes the relationship between pressure (P), volume (V), number of moles (n), gas constant (R), and temperature (T).
* Constant Values: At RTP, the pressure, temperature, and gas constant are all constant. Therefore, the volume of 1 mole of any ideal gas will be the same.
Keep in mind: This volume is an approximation. Real gases deviate slightly from ideal behavior.
