0环行 Melting Points of Alkanes Branched alkanes pack more efficiently into a crystalline structure,so have higher m.p. 50 0 even numbers juod -50 Sunlew -100 odd numbers -150 -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