ideal+gas+law

The ideal gas law is used for specific situations where there are constant conditions. Because all gases behave consistently (if they are acting ideally), this law contains a Gas Constant, represented by the letter R.

R = 0.08206 L atm mol-1 K-1

Any time you use the ideal gas law, use the number 0.08206 for R.

Here's the law:



Because of the units on the gas constant R, pressure must be in atm, volume in L, and T in Kelvin; n stands for mole.

Practice problems with answers: