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

We will solve this problem using the **ideal gas equation**.

$\overline{){\mathbf{PV}}{\mathbf{}}{\mathbf{=}}{\mathbf{}}{\mathbf{nRT}}}$

**Where,**

P = pressure

V = volume

n = number of moles

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

T = temperature in Kelvin units

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