A. Determine which of the following species has the lower boilingpoint, make sure to justify your answer.(i) CH4 vs C6H6(ii) CO2 vs SO2B. Determine which of the following species has the lower vaporpressure, make sure to justify your answer.(i) CHCI3 vs C4(ii) H2O vs H2S

Answered: A. Determine which of the following…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

A. Determine which of the following species has the lower boiling
point, make sure to justify your answer.
(i) CH4 vs C6H6
(ii) CO2 vs SO2
B. Determine which of the following species has the lower vapor
pressure, make sure to justify your answer.
(i) CHCI3 vs C4
(ii) H2O vs H2S

Expert Solution

Step 1

At boiling point the vapour pressure of liquid and pressure exerted by the surrounding are equal. The compounds with high intermolecular forces will have high boiling point. Boiling point in hydrocarbons increases with increase in the number of carbon atoms and branching.

Gaseous molecules present above the liquid in sealed container will exert pressure on that liquid. This pressure is termed as vapor pressure. Vapor pressure increases with temperature. If molecules with strong intermolecular forces will exert lower vapor pressure while the molecule with weak intermolecular forces will exert higher vapor pressure.

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