Question

In defining the ideal gas temperature scale, it is
assumed that the pressure of the gas at constant volume
is proportional to the temperature T. How can we verify
whether this is true or not? Are we using the kinetic
theory of gases ? Are we using the experimental result
that the pressure is proportional to temperature ?​

Answer 1

Answer:

As the temperature increases, the molecules in the gas move faster, impacting the gas's container more frequently and exerting a greater force. This increases the pressure. And similarly As the pressure goes up, the temperature also goes up. So the temperature and the pressure is directly proportional to each other.

Answer 2

Answer:

That pressure is called atmospheric pressure, or air pressure. It is the force exerted on a surface by the air above it as gravity pulls it to Earth. ... Oneatmosphere is 1,013 millibars, or 760 millimeters (29.92 inches) of mercury.Atmospheric pressure drops as altitude increases.