Question

Acetic acid (CH–COOH) has a boiling point of 118.0°C at 1.00 atm, and 56.9°C at 0.100 atm. Which relationship allows you to calculate the heat of vaporization from this information? What is the heat of vaporization of acetic acid in kJ mol?¹? Would you expect Methanoic acid (HCOOH) to have a higher or lower boiling point?

          Acetic acid (CH–COOH) has a boiling point of 118.0°C at 1.00 atm, and 56.9°C at 0.100 atm.
Which relationship allows you to calculate the heat of vaporization from this information?
What is the heat of vaporization of acetic acid in kJ mol?¹?
Would you expect Methanoic acid (HCOOH) to have a higher or lower boiling point?

Acetic acid (CH–COOH) has a boiling point of 118.0°C at 1.00 atm, and 56.9°C at 0.100 atm.
Which relationship allows you to calculate the heat of vaporization from this information?
What is the heat of vaporization of acetic acid in kJ mol?¹?
Would you expect Methanoic acid (HCOOH) to have a higher or lower boiling point?

Added by Rebekah H.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Madhur L

03/06/2023

Step 1

We can use the Clausius-Clapeyron equation to relate the boiling points and pressures to the heat of vaporization. The equation is: $$\ln\frac{P_2}{P_1} = -\frac{\Delta H_{vap}}{R} \left(\frac{1}{T_2} - \frac{1}{T_1}\right)$$ Show more…

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Acetic acid (CH3COOH) has a boiling point of 118.0°C at 1.00 atm, and 56.9°C at 0.100 atm. Which relationship allows you to calculate the heat of vaporization from this information? What is the heat of vaporization of acetic acid in kJ mol⁻¹? Would you expect Methanoic acid (HCOOH) to have a higher or lower boiling point?