Question

Find the pressure of a sample of 2.000 mol of helium (assume ideal) at a volume of 20.00 L
and a temperature of 500.0 K. Express your answer in terms of Pa, bar, atm, and torr.

Answer 1

Using ideal gas eqn.

We get

P=nRT/V

2×8.314×500

P= ---------------------

20

=>P=415.7 Pa