Question

A gas sample occupies 7.73 L at 22 C. What is the pressure given that there are 1.16 mol of gas in the sample ? Answer in units of atm.

Answer 1

From the Mendeleev-Clapeyron equation we can express the pressure:

$p•V = \nu•R•T$ $\to$ $p = (\nu•R•T)/V$

p = (1.16(mol)•8.31((N•m)/(mol•K))•295K)/7.73(m³) = 367.9 N/m² = 0.03 atm

Answer: p = 0.03 atm