Calculate the temperature (in °C) at which acetone boils at a mountain top research facility where the atmospheric pressureis 630.0 torr. Solventacetoneacetonitrilebenzenecarbon tetrachloridechloroformcyclohexanediethyl etherdimethyl formamid (DMF)dimethyl sulfoxide (DMSO)ethanolethylene glycolglycerinheptanemethanolmethylene chloride2-propanolpyridinetetrahydrofuran (THF)toluenewaterformulaMWC3H6O 58.08C₂H3N 41.05C6H678.11CC14153.8CHCI3119.4C6H12 84.16C4H10074.12C3H7NO73.09C₂H₂OS78.13C₂H6O46.07C₂H602 62.07C3H8O3 92.09100.232.0484.9388.1579.172.1192.1418.02C7H16CH40CH₂Cl2C3H8OC5H5NC4H8OC7H8H₂Oboilingpoint(°C)56.181.780.176.861.280.734.5153.0189.078.5195.0290.098.064.639.882.4115.265.0110.6100.0AHvapkJ/mol31.333.2330.7229.8229.2429.9726.5246.752.938.566591.731.7735.2128.064435.0929.8133.1840.67

Boiling point is defined as the temperature at which a liquid starts boiling and becomes vapor.depends upon the intermolecular forces of attraction present in the molecule. The stronger the intermolecular forces, higher the boiling point.Boiling point is inversely proportional to vapor pressure. This means higher boiling liquid, will have lower vapour pressure and vice versa.According to the clausius clapeyron equation,ln(P2/P1)= (−ΔH/R) [1/T2−1/T1]where P2 = vapour pressure at temperature 2 = 630.0 torr P1 = vapour pressure at temperature 1 = 760.0 torr (normal boiling point)ΔH = enthalpy of reaction in J/molR = gas constant = 8.314 J/K.molT1 = temperature 1 = 56.1 + 273.15 K = 329.25 KHence substituting the values we get ln (630 torr /760 torr ) = (-31.3 * 103 Jmol-1 /8.314 JK-1 mol-1 ) * [ ( 1/T2 ) -(1/329.25 K) ] (since 1 KJ =1000 J)T 2 = 323.94 K = 323.94 - 273.15 °C = 50.8 °CHence, new boiling point is found to be 50.8 °C Hence, new boiling point is found to be 50.8 °C

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Calculate the temperature (in °C) at which acetone boils at a mountain top research facility where the atmospheric pressur is 630.0 torr.

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

100%

Calculate the temperature (in °C) at which acetone boils at a mountain top research facility where the atmospheric pressure
is 630.0 torr.

Solvent
acetone
acetonitrile
benzene
carbon tetrachloride
chloroform
cyclohexane
diethyl ether
dimethyl formamid (DMF)
dimethyl sulfoxide (DMSO)
ethanol
ethylene glycol
glycerin
heptane
methanol
methylene chloride
2-propanol
pyridine
tetrahydrofuran (THF)
toluene
water
formula
MW
C3H6O 58.08
C₂H3N 41.05
C6H6
78.11
CC14
153.8
CHCI3
119.4
C6H12 84.16
C4H100
74.12
C3H7NO
73.09
C₂H₂OS
78.13
C₂H6O
46.07
C₂H602 62.07
C3H8O3 92.09
100.2
32.04
84.93
88.15
79.1
72.11
92.14
18.02
C7H16
CH40
CH₂Cl2
C3H8O
C5H5N
C4H8O
C7H8
H₂O
boiling
point
(°C)
56.1
81.7
80.1
76.8
61.2
80.7
34.5
153.0
189.0
78.5
195.0
290.0
98.0
64.6
39.8
82.4
115.2
65.0
110.6
100.0
AHvap
kJ/mol
31.3
33.23
30.72
29.82
29.24
29.97
26.52
46.7
52.9
38.56
65
91.7
31.77
35.21
28.06
44
35.09
29.81
33.18
40.67

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