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2. The next four questions refer to the following table of values. molecule b (L

ID: 986544 • Letter: 2

Question

2. The next four questions refer to the following table of values. molecule b (L/mol) a/R 298K (L/mol) (L2bar/mol2 bar/mol 0.05264 0.06702 0.06380 0.06901 0.08445 0.05636 0.05787 Fluoromethane methanol ethane 4.692 9.649 5.562 7.769 8.779 6.803 4.377 89.1 143.9 87.2 112.6 104.0 120.7 75.6 0.189 0.389 0.224 0.314 0.354 0.275 anogen ropane sulfur dioxide silane a. Which molecule below has the largest intermolecular attraction ()? a) silane b) sulfur dioxide c) propane d) cyanogen b. Which molecule below is the largest (based on RL)? c) cyanogen d) propane a) methanol b) ethane c. Which gas has the largest molar volume at 0.2 bar and 298 K? a) methanol c) propane b) ethane d) cyanogen d. What is the value of the second virial coefficient for methanol at 298 K? a) -0.322 L/mol b) -0.06702 L/mol c) -0.389 L/mol d) Cannot be determined

Explanation / Answer

2.

a) c. propane

Since, more are the intermolecular forces of attractions,more will be the value of 'a'.

b) d.propane

size of the molecule is directly proportional to the value of 'b'.

c) d.cyanogen

d) d.can't be determined.

second viral coefficient can be calculated by B'(T) = a + be-c/T^2 , inorder to calculate it, we need c value.

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