Problem: Which gas sample has the greatest pressure? Assume that all the samples are at the same temperature.

We have to calculate which of the given gas samples has the highest pressure.

We will solve this problem using the ideal gas equation.

$\boxed{\mathbf{PV}\mathbf{ }\mathbf{=}\mathbf{ }\mathbf{nRT}}$

Where,

P = pressure

V = volume

n = number of moles

R = gas constant = 0.08206 L•atm/mol•K

T = temperature in Kelvin units