Answer
See explanation below.
Work Step by Step
1
A long hydrocarbon chain can rotate and vibrate in more ways than a short one, so
entropy increases with chain length. Hence CH3OH(l) has lower molar entropy than C2H5OH(l)
2
KClO3(s) has lower molar entropy than KClO3(aq) because KCLO3 in aqueous phase has more freedom of movement
3
Na(s) has lower entropy than K(s) because with heavier atom in same periodic group has more entropy