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Q.
A plot of pressure vs temperature for low density gases is as follows: When extrapolated the lines will meet the temperature axis at
Kinetic Theory
Solution:
From the ideal gas equation, $P V=n R T$. Holding the volume of a gas constant, given $\rho \propto T .$ The absolute minimum temperature for an ideal gas, inferred by extrapolating the straight line to the axis is found to be $-273.15^{\circ} C$ and is designated as absolute zero.
