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- 54. The structural isomers C2H5OH and CH3OCH3 would be expected to have the same values for which of the following? (Assume ideal behavior.) (A) Gaseous densities at the same temperature and pressure (B) Vapor pressures at the same temperature (C) Boiling points (D) Melting points (E) Heats of vaporizationOf the hydrocarbons given here, which would you expect to have the highest boiling point?A) Heptane B) MethaneC) DecaneD) PropaneOnly typed explanation otherwise leave it Which of these compounds would have the highest boiling point?