Question
In: Chemistry
The vapor pressure of solid benzene is 299 Pa at -30ºC and 3270 Pa at 0ºC....
The vapor pressure of solid benzene is 299 Pa at -30ºC and 3270 Pa at 0ºC. The vapor pressure of liquid benzene is 6170 Pa at 10ºC, and 15,800 Pa at 30ºC. (a) Calculate the triple point of benzene (temperature and pressure at which solid, liquid, and vapor all coexist). This is obtained by using the Clausius-Clapeyron equation first to determine ∆vapH for the solid and the liquid, and then to give equations for the curves defining the solid-vapor equilibrium and the liquidvapor equilibrium, and solving both the latter equations simultaneously. (b) Calculate the enthalpy of fusion at the triple point, ∆fusH = Hliq – Hsol.
Solutions
queen_honey_blossom answered 2 hours agoRelated Solutions
The vapor pressure of solid benzene is 299 Pa at -30ºC and 3270 Pa at 0ºC....
The vapor pressure of solid benzene is 299 Pa at -30ºC and 3270
Pa at 0ºC. The vapor pressure of liquid benzene is 6170 Pa at 10ºC,
and 15,800 Pa at 30ºC. (a) Calculate the triple point of benzene
(temperature and pressure at which solid, liquid, and vapor all
coexist). This is obtained by using the Clausius-Clapeyron equation
first to determine ∆vapH for the solid and the liquid, and then to
give equations for the curves defining the solid-vapor equilibrium...
A toluene solution is blended with 25% mass of benzene. The vapor pressure of benzene and...
A toluene solution is blended with 25% mass of benzene. The
vapor pressure of benzene and toluene at 25'C are 94.2 torr and
28.4 torr respectively. (a) Calculate the vapor pressure of each
component, (b) total pressure of the above solution, and (c) the
composition of the vapor in mass percent.
Benzene and toluene form an ideal solution. At 25 oC, the vapor pressure of pure benzene...
Benzene and toluene form an ideal solution. At 25 oC, the vapor
pressure of pure benzene is 100 torr, and the vapor pressure of
pure toluene is 30.0 torr. A solution is prepared of 1.0 mol
benzene and 2.0 mol toluene. Some of the solution evaporates in a
closed system. What is the mole fraction of benzene in the
vapor?
A. 0.33
B. 0.43
C. 0.53
D. 0.63
E. 0.73
At 87°C the vapor pressure of benzene is 931 torr and that of toluene is 290...
At 87°C the vapor pressure of benzene is 931 torr and that of
toluene is 290 torr. Which substance, benzene or toluene has the
higher normal boiling point? Is the normal boiling point of benzene
above or below 87°C? Is the normal boiling point of toluene above
or below 87°C? Explain how you arrived at your answers.
The vapor pressure of benzene is 73.03 mm Hg at 25 °C. A nonvolatile, nonelectrolyte that...
The vapor pressure of benzene is
73.03 mm Hg at 25 °C. A nonvolatile,
nonelectrolyte that dissolves in benzene is
TNT.
Calculate the vapor pressure of the solution at 25 °C when
14.83 grams of TNT,
C7H5N3O6
(227.1 g/mol), are dissolved in
254.5 grams of benzene.
benzene =
C6H6 =
78.12 g/mol.
VP(solution) =-________mm Hg?
assume that hexane and benzene mix to form an ideal solution. the vapor pressure of hexane...
assume that hexane and benzene mix to form an ideal solution.
the vapor pressure of hexane and benzene at 25C are 151.3 torr and
100.8 torr respectively. The total vapor pressure of the solution
is 130.1 torr at 25C. What is the mole fraction of benzene in the
solution and in the vapor?
The vapor pressure of liquid benzene is 17.7 kPa at 30 ºC and 37.7 kPa at...
The vapor pressure of liquid benzene is 17.7 kPa at 30 ºC and
37.7 kPa at 50 ºC. a) Calculate the enthalpy of vaporization of
benzene. b) Estimate the vapor pressure at 10 ºC [use your answer
from part (a)]. c) Estimate the normal boiling point of benzene
(use a vapor pressure of 1 bar and use the result from part
(a)]
The vapor pressure of benzene is 73.03 mm Hg at 25 °C. A nonvolatile, nonelectrolyte that...
The vapor pressure of benzene is
73.03 mm Hg at 25 °C. A nonvolatile,
nonelectrolyte that dissolves in benzene is
cholesterol.
Calculate the vapor pressure of the solution at 25 °C when
5.507 grams of cholesterol,
C27H46O
(386.6 g/mol), are dissolved in
205.6 grams of benzene.
benzene =
C6H6 =
78.12 g/mol.
VP(solution) = ____ mm Hg
4. A solution of benzene and toluene at 25C and 760mmHg has a total vapor pressure...
4. A solution of benzene and toluene at 25C and 760mmHg has a
total vapor pressure (Ptotal) of 71.08 torr (mmHg). If
the partial pressures of benzene (Pbenzene) and toluene
(Ptoulene) are 60.86 torr and 122 torr respectively,
what are the percentages of a. benzene; and b. toluene, in
the corresponding vapor above the liquid. Please show all the
calculations.
(b) If the vapor pressure of pure benzene is always higher than
the vapor pressure of pure toluene when they...
Data for benzene and toluene are given below. Calculate the vapor pressure over a solution made...
Data for benzene and toluene are given below. Calculate the
vapor pressure over a solution made by mixing 20.0 grams of benzene
with 80.0 grams of toluene when the temperature is 40.0ºC.
Compound Molar
Mass
Vapor Pressure at 40.0ºC
Benzene
78.11
g/mol
183 mm Hg
Toluene
92.14
g/mol
59 mm Hg
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