Which of the following statements about the van der Waal's coefficients for He and water is most likely correct? A) He and H2O are both non-ideal and each will have a significant “a” and “b” correction factors
B) Helium and water both have small correction factors because both are fairly ideal gasses
C) Helium has small”a” and “b” correction factors, while the “b” correction factor for water will be large for its size
D) Helium has small”a” and “b” correction factors, while the “a” correction factor for water will be large for its size

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic