Answered: What is the enthalpy of vaporization of…

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter11: Intermolecular Forces And Liquids

Section: Chapter Questions

Problem 66SCQ

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Question

The vapor pressure, ?, of a certain liquid was measured at two temperatures, ?. The data is shown in the table.

T (K)	P (kPa)
225	3.32
725	7.66

Keep the pressure units in kilopascals.

If you were going to graphically determine the enthalpy of vaporizaton, Δ?vap, for this liquid, what points would you plot? To avoid rounding errors, use three significant figures in the ?‑values and four significant figures in the ?‑values.

point 1: ?=

point 2: ?=

Determine the rise, run, and slope of the line formed by these points.

rise=

run=

slope=

What is the enthalpy of vaporization of this liquid?

Δ?vap=

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