1.12 mol sample of carbon dioxide gas at a temperature of 10.0 C is found to occupy a volume 25.5 liters. What is the pressure of this gas sample?

Answer 1

Ideal Gas Law:

PV = nRT

P = pressure = ?

V = volume = 25.5 L

n = moles = 1.12

R = gas constant = 0.0821 Latm/Kmol

T = temperature in K = 10.0C + 273 = 283K

Solving for P, we have..

P = nRT/V = (1.12)(0.0821)(283) / 25.5

P = 1.02 atm (units are in atm because units of R = Latm/Kmol)