Question

What units are used in $\mathrm{PV}=\mathrm{nRT}$?

Answer 1

• According to the ideal gas law, the product of pressure and volume is equal to the product of the Universal gas constant and temperature at one gram molecule of gas.
• This can be empirically written as follows: $\mathrm{PV}=\mathrm{nRT}$
• Where, $\mathrm{P}$ is the pressure of the gas.
• $\mathrm{V}$ is the volume of the gas
• $\mathrm{n}$ is the number of moles of gas
• $\mathrm{R}$ is the gas constant and it is the same for all gases.
• $\mathrm{T}$ is the temperature.
• The ideal gas law is derived from Boyle's law, Charles' law, and Avogadro's law.
• The gas constant R has a specific value equal to $8.314{\mathrm{JK}}^{-1}{\mathrm{mol}}^{-1}$,
• The unit of pressure used is pascal$\left(\mathrm{Pa}\right)$.
• The unit of volume used is ${\mathrm{m}}^3$.
• The unit of a number of moles of gas is $\mathrm{mol}$.
• The unit of temperature used is Kelvin $\left(\mathrm{K}\right)$.