A 35.00g sample of sulfar dioxide gas at 21.5 oC has a pressure of 0.977 atm a)

Question

A 35.00g sample of sulfar dioxide gas at 21.5 oC has a pressure of 0.977 atm

a) what is the volume of the sample?

b)Identify which of the following changes in temperature would result in nonideal behavior and indicate why by describing what assumption in the kinetic theory is no longer valid.

1) small decrease         2) Large decrease           3) small increase   4) Large increase

c)Identify which of the following changes in pressure would result in nonideal behavior and indicate why by describing what assumption in the kinetic theory is no longer valid.

1) small decrease         2) Large decrease           3) small increase   4) Large increase

Explanation / Answer

m = 35 g of SO2

MW = 64.066

mol = 35/64.066 = 0.54631

PV = nRT

V = nRT/P = 0.54631*0.082*(21.5+273)/0.977 = 13.503 L

b)

if we increase T very much; the collisions must be accounted.. choose 4

c)

IF P increases too much, the interactions will be higher, that is, more collisions. Choose Large decrease or 1

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