Gas Constant

[Viviana Velasquez]

Which gas constant are we expected to use for the equation PV=nRT?

[Kimberly Koo 2I]

0.08206 L.atm.mol.K

[TarynD_1I]

The gas constant depends on which measurement that the question uses (J, atm, bar, or torr usually) and it will be on the equations sheet.

[Anna Chen 1K]

The value for the gas constant depends on the units used in the specific question.

[Anna Heckler 2C]

Use the gas constant that has the same units as the other values you are using in the calculation. For example, if your pressure is in atm, then use the gas constant that has the unit with atm (so they match and cancel).

[105311039]

Every question can possibly be different, so you can necessarily pinpoint down one equation. It just depends on the question and units.

[stephaniekim2K]

There's a few different gas constants for different units but they are the same constant, just with different units. They are all on the formula sheet.

[Charysa Santos 4G]

The gas constant (R) depends on what other units are given to you when calculating PV = nRT. The units are included on the formula/equation sheet.

[J_CHEN 4I]

Use the constant that includes the unit that is the same as the P in PV=nRT (so units cancel out nicely).

[Sean Tran 2K]

The gas constant needed will be based on the units of pressure. The constants should be on the formula sheets during tests.

[AronCainBayot2K]

The Gas Constant value is determined based on the pressure usually and other components in the ideal gas law equation. Pressure can be measured in atm, bar, etc, and R is represented in many of those units.

[Jesse Anderson-Ramirez 3I]

The constants will be given on the formula sheet during the exams.

[kausalya_1k]

It honestly depends what units P, V, and T are given. Typically we use .08206 L atm/mol K, but it really depends on units for the given values.

[Astrid Lunde 1I]

The gas constant is given on the formula sheet, make sure you chose the one with the units that apply to the equation.