Question

Under constant temperature, a `5.00*L` volume of gas at `1*atm` pressure is compressed to `3.00*L`. What is the new pressure?

Answer 1

`P_1V_1 = P_2V_2` (Boyle's law, pressure is inversely proportional to volume at constant temperature.)

Explanation:

`P_2 = (P_1V_1)/V_2` `=` `(1*atmxx5.00L)/(3.00L)` `=` `(5/3atm)`.

Here I have used non-standard units. I am free to do so as long as I do so consistently. (Note that a pressure measurement of 760 mm Hg is equivalent to 1 atmosphere).