自秋不特大对 Melting Points of Alkanes Branched alkanes pack more efficiently into a crystalline structure,so have higher m.p. 50 偶 even numbers -50 -100 odd numbers -150 奇 -200 0 5 10 15 20 number of carbon atoms Melting Points of Alkanes ◼Branched alkanes pack more efficiently into a crystalline structure, so have higher m.p. 偶 奇