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part two: calculate the pressure exerted assuming the gas behaves as an ideal ga

ID: 1772703 • Letter: P

Question


part two: calculate the pressure exerted assuming the gas behaves as an ideal gas. H6HW This is a Numeric Entry question/It is worth O points/You have unlimited attempts/There is no attempt penalty a See page 312 14 Question (Practice At high pressures, real gases do not behave ideally. Calculate the pressure exerted by 33.5 g H2 at 20.0°C in a 1.00L container assuming in Part 1 non- ideal behavior and in Part 2 ideal behavior 1st attempt Part 1 Ihd See Periodic Table See Hint Use the van der Waals equation and data in the hint to calculate the pressure exerted atm 14/14 11 OF 14 Type here to

Explanation / Answer

partA] number of moles = 33.5/4 = 8.375 moles

real gas equation, [ P + an^2/V^2]*[V-nb] = nRT

entering the value of a and b in L-bar-mole units

[P - 0.0346*8.375^2/1^2]*[1-8.375*0.0238] = 8.375*8.314e-2*(20+273)

solving for P, we get P=257.2 bar = 2.57*10^7 Pa

b] using ideal gas equation, PV = nRT

P = nRT/V = 8.375*8.314*[273+20)/0.001 = 2.04*10^7 Pa