I drew both trans 1,4-dichlorocyclohexane conformers. In the first one, both chlorine atoms are axial, and in the other, both are equatorial.
My answer is:
The conformer where both chlorine atoms are equatorial is the most stable due to the lowest amount of interactions between them and the other atoms in the molecule. The conformer where both chlorine atoms are axial is in a higher energy level, and less stable.
Is this correct?
Thanks