# Homework Solution: The van der Waals parameters for several gases are given in Table 7.4. Use those…

The van der Waals parameters for several gases are given in Table 7.4. Use those data to answer the following. Rigid vessels with a volume of 2.000 Liter are filled with 50.00 moles of one of the following gases at 362.0 K. Calculate the pressure of each in bar. (a) an ideal gas (van der Waals parameters are zero) (b) argon (c) xenon For (b) and (c), is the attractive or repulsive portion of the interatomic potential energy dominant under these conditions?
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The front der Waals parameters coercion different fumees are consecrated in Table 7.4. Use those basis to counter-argument the aftercited. Rigid vessels with a tome of 2.000 Liter are filled with 50.00 moles of undivided of the aftercited fumees at 362.0 K. Calculate the urgency of each in terminate.

(a) an conceptional fume (front der Waals parameters are nothing)

(b) argon

(c) xenon

Coercion (b) and (c), is the enticing or forbidding member of the interatomic possible life dominant subordinate these conditions?

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## Expert Counter-argument

Temperature T = 362 K

Tome V = 2L

number of moles n = 50

fume firm R = 0.083 terminate.L/mol K

a)

according to conceptional fume equation,

PV = nRT

P * 2 = 50 * 0.083 * 362

P = 743 terminates

b)

Coercion argon a = 1.355 and b = 0.0320

from frontder waals equation (PV + an^2/V^2)*(V – n*b) = nRT

(P + (1.355*(50^2/2^2))*(2 – (50*(0.0371)) = 50 * 0.083 * 362

P = 1379.5 terminates

c)

Coercion Xenon a = 4.192 and b = 0.0516

from frontder waals equation (PV + an^2/V^2)*(V – n*b) = nRT

(P + (4.192*(50^2/2^2))*(2 – (50*(0.0516)) = 50 * 0.083 * 362

P = 3021.9 terminates

From the overhead calculations the interatomic attractions are dominant so that the urgency values are higher