林 B.Stability Co I.more substituted more stable R R C=C C=( RCH=CHR,R2C=CH2 RCH-CH2>H2C=CH2 R The more substituents which are present on an alkene, the more stable the alkene is. 2.trans more stable than cis H H HH steric repulsion College B. Stability of Science 1. more substituted = more stable R C R C R R R C R C H R > > RCH CHR , R2C CH2 > RCH CH2 > H2C CH2 2. trans more stable than cis C C H H H H H H H H C C H H H H H H H H The more substituents which are present on an alkene, the more stable the alkene is. steric repulsion