R Constant

[805383532]

How do we know which R constant to use in calculation?

[Kimberly Koo 2I]

R is the universal gas constant, which is 0.082 L.atm/mol.K

[805097738]

R is the universal gas constant, which is 0.082 L.atm/mol.K

there are different R constants for different units though

[Robert Tran 1B]

You should use the R constant that has units that cancel out with the other units in the equation. For example, in PV=nRT, we use 0.08206 (L*atm)/(mol*K) because it cancels with the pressure, volume, moles, and temperature.

[Jared Khoo 1G]

Use the R constant that uses the appropriate unit of pressure.

[105335337]

R is the universal gas constant and has the units of the other variables (L, atm, etc...)

[Veronica Lu 2H]

R is usually 0.082- it may also be on the formula sheet

[Trent Yamamoto 2J]

The R values are different depending on the temperature used in the reaction