Physical Properties Polarity Similar to alkanes,haloalkanes. H CH3 u=0.33D 3=9 u=0 cis-2-butene,bp 4 C trans-2-bute ne,bp 1 C C=0 H H H u=1.7D 4=0D b.p.=60°c b.p.=48°cPhysical Properties Similar to alkanes, haloalkanes. Cl C H C H Cl Cl C H C Cl H m = 1.7 D b.p. = 60ºc m = 0 D b.p. = 48ºc Polarity m = 0.33 D cis-2-butene, bp 4 °C C C H H3C H CH3 m = 0 trans-2-butene, bp 1 °C C C H H H3C CH3