what is the right answer?

Question

When gases are treated as real, via use of the van der Waals equation, the actual volume occupied by gas molecules __________ the pressure exerted and the attractive forces between gas molecules __________ the pressure exerted, as compared to an ideal gas.



a. decreases, increases

b. increases, increases

c. increases, decreases

d. does not affect, decreases

e. does not affect, increases

Answer 1

Not too familiar with the van dee Waals equations, but from what I know from thermal dynamics. The answer should be 'c' , since the actual volume of the molecules would want to return to original state by pushing back against the surrouding environment, and the attractive forces between the molecules would pull them together and thus reduced pressure against surrounding environment.

XR

Answer 2

c. increases, decreases

Answer 3

c