A compressed gas cylinder containing 1.50 mol methane has a volume of 3.30 L. What pressure does the methane exert on the walls of the cylinder if its temperature is 25°C?

Question

Quizplus · Accepted Answer

Using the ideal gas law, PV = nRT, where P is pressure, V is volume, n is moles, R is the ideal gas constant (0.0821 L·atm/mol·K), and T is temperature in Kelvin. Convert 25°C to Kelvin (25 + 273.15 = 298.15 K). Plug in the values: P(3.30 L) = (1.50 mol)(0.0821 L·atm/mol·K)(298.15 K). Solving for P gives approximately 11.1 atm.

A Compressed Gas Cylinder Containing 1