Draw the two chair conformations of each compound and label the substituents as axial and equatorial. In

Question:

Draw the two chair conformations of each compound and label the substituents as axial and equatorial. In each case, determine which conformation is more stable.
(a) Cis-1-ethyl-2-isopropylcyclohexane
(b) Trans-1-ethyl-2-isopropylcyclohexane
(c) Cis-1-ethyl-3-methylcyclohexane
(d) Trans-1-ethyl-3-methylcyclohexane
(e) Cis-1-ethyl-4-methylcyclohexane
(f) Trans-1-ethyl-4-methylcyclohexane