The structural formula for two isomers of 1, 2-dichloroethene are shown above. which of the two liquids has the higher equilibrium vapor pressure at 20° C and why a) the cis-omer because it only has dipole dipole and the trans-iomer has london dispersion forces
b) cis-omer because it has only ldf and trans-iomer has dipole dipole
c) trans-iomer because it has only dipole dipole and cis-omer has ldf
d) trans-iomer because it has only ldf and cis-omer has dipole dipole