The normal boiling point of a substance is defined as the temperature at which the vapour...
The normal boiling point of a substance is defined as the temperature at which the vapour pressure above the liquid equals the external pressure, which is one atmosphere (1 atm) or simply the temperature at which the substance boils at 1 atm. Standard pressure is 1 bar, so the standard boiling point is the temperature at which the substance boils at 1 bar. The normal boiling point for ethanol is 78.4 ∘C.
Given that the heat of vaporization for ethanol is 38.6 kJmol−1 at 78.4 ∘C, determine the standard boiling point for ethanol.
Express your answer using two decimal places.
Homework Answers
Answer:-
This question is solved by using simple concept of Clausius Clapeyron equation which involves the relationship between temperature and vapor pressure.
The answer is given in the image,
Add Answer to:
The normal boiling point of a substance is defined as
the temperature at which the vapour...
The following information is given for n-pentane, C5H12, at 1am boiling point = 36.2°C AHyap(36.2 °C)...
The following information is given for n-pentane, C5H12, at 1am boiling point = 36.2°C AHyap(36.2 °C) = 25.8 kJ/mol specific heat liquid = 2.28 J/gºC At a pressure of 1 atm, what is AH in kJ for the process of condensing a 38.4 g sample of gaseous n-pentane at its normal boiling point of 36.2 °C The following information is given for ethanol, C,H,OH, at 1am: boiling point = 78.4°C AH ap(78.4 °C) = 38.6 kJ/mol specific heat liquid =...
The normal boiling point of liquid diethyl ether is 30s K. Assuming that its molar heat...
The normal boiling point of liquid diethyl ether is 30s K. Assuming that its molar heat of vaporization is constant at 28.1 kJmol, the boiling point of C,HgOC2Hg when the external pressure is 0.640 atm K. Submit Answer Retry Entire Group 2 more group attempts remaining
Vapour Pressure as a Function Of Temperature The normal boiling point of diethyl ether is 34.60...
Vapour Pressure as a Function Of Temperature The normal boiling point of diethyl ether is 34.60 °C. At 20.00 °C, the vapour pressure of diethyl ether is 0.5789 atm. What is the vapour pressure of diethyl ether when the temperature is 30.00 °C?
s. Consider propane, which has a normal boiling point of -42.0°C and a heat of vaporization...
s. Consider propane, which has a normal boiling point of -42.0°C and a heat of vaporization of 19 kJ/mol. What is the vapor pressure at 25.0°C? 6. Atmospheric pressure on the surface of Mars averages 600 Pa (6 mbar) Use the phase diagram for water below to determine the boiling and melting points for water on the surface of Mars, assuming an atmospheric pressure of 800 Pa. Note that this chart uses a logarithmic scale, so the axes major unit...
Use the References to access important values if needed for this question. The following information is...
Use the References to access important values if needed for this question. The following information is given for ethanol CH3OH, at latm: AH 2p(78.4 °C) = 38.6 kJ/mol boiling point = 78.4°C specific heat liquid = 2.46 J/g°C At a pressure of 1 atm, kJ of heat are needed to vaporize a 40.4 g sample of liquid ethanol at its normal boiling point of 78.4 °C.
References) Use the References to access important values if needed for this question. The following information...
References) Use the References to access important values if needed for this question. The following information is given for ethanol, C2HOH, at latm: boiling point 78.4 °C specific heat liquid 2.46 J/g°C AHa(78.4 °C)38.6 kJ/mol At a pressure of 1 atm, kJ of heat are needed to vaporize a 40.4 g sample of liquid ethanol at its normal boiling point of 78.4 °C.
Ethanol has a heat of vaporization of 38.56 kJ/mol and a normal boiling point of 78.4...
Ethanol has a heat of vaporization of 38.56 kJ/mol and a normal boiling point of 78.4 degrees Celsius. What is the vapor pressure of ethanol at 15 degrees Celsius?
. The substance fluorine has the following properties: normal melting point: 53.5 K normal boiling point:...
.
The substance fluorine has the following properties: normal melting point: 53.5 K normal boiling point: 85.0 K triple point: 1.6*10-4 atm, 53.4 K critical point: 55 atm, 144.1 K A sample of fluorine is initially at a pressure of 56.1 atm and a temperature of 96.9 K. The pressure on the sample is reduced to 1.60*10-4 atm at a constant temperature of 96.9 K. Which of the following are true? Choose all that apply The liquid initially present will...
The normal boiling point of liquid butanol is 391 K. Assuming that its molar heat of...
The normal boiling point of liquid butanol is
391 K. Assuming that its molar heat of
vaporization is constant at 45.9 kJ/mol, the
boiling point of C4H9OHwhen
the external pressure is 0.603 atm is ________
K.
The normal boiling point of liquid bromoethane is 311 K. Assuming that its molar heat of...
The normal boiling point of liquid bromoethane is 311 K. Assuming that its molar heat of vaporization is constant at 27.1 kJ/mol, the boiling point of CH3Br when the external pressure is 1.35 atm is
The following information is given for n-pentane, C5H12, at 1am boiling point = 36.2°C AHyap(36.2 °C) = 25.8 kJ/mol specific heat liquid = 2.28 J/gºC At a pressure of 1 atm, what is AH in kJ for the process of condensing a 38.4 g sample of gaseous n-pentane at its normal boiling point of 36.2 °C The following information is given for ethanol, C,H,OH, at 1am: boiling point = 78.4°C AH ap(78.4 °C) = 38.6 kJ/mol specific heat liquid =...
The normal boiling point of liquid diethyl ether is 30s K. Assuming that its molar heat of vaporization is constant at 28.1 kJmol, the boiling point of C,HgOC2Hg when the external pressure is 0.640 atm K. Submit Answer Retry Entire Group 2 more group attempts remaining
s. Consider propane, which has a normal boiling point of -42.0°C and a heat of vaporization of 19 kJ/mol. What is the vapor pressure at 25.0°C? 6. Atmospheric pressure on the surface of Mars averages 600 Pa (6 mbar) Use the phase diagram for water below to determine the boiling and melting points for water on the surface of Mars, assuming an atmospheric pressure of 800 Pa. Note that this chart uses a logarithmic scale, so the axes major unit...
Use the References to access important values if needed for this question. The following information is given for ethanol CH3OH, at latm: AH 2p(78.4 °C) = 38.6 kJ/mol boiling point = 78.4°C specific heat liquid = 2.46 J/g°C At a pressure of 1 atm, kJ of heat are needed to vaporize a 40.4 g sample of liquid ethanol at its normal boiling point of 78.4 °C.
References) Use the References to access important values if needed for this question. The following information is given for ethanol, C2HOH, at latm: boiling point 78.4 °C specific heat liquid 2.46 J/g°C AHa(78.4 °C)38.6 kJ/mol At a pressure of 1 atm, kJ of heat are needed to vaporize a 40.4 g sample of liquid ethanol at its normal boiling point of 78.4 °C.
.
The substance fluorine has the following properties: normal melting point: 53.5 K normal boiling point: 85.0 K triple point: 1.6*10-4 atm, 53.4 K critical point: 55 atm, 144.1 K A sample of fluorine is initially at a pressure of 56.1 atm and a temperature of 96.9 K. The pressure on the sample is reduced to 1.60*10-4 atm at a constant temperature of 96.9 K. Which of the following are true? Choose all that apply The liquid initially present will...
The normal boiling point of liquid butanol is
391 K. Assuming that its molar heat of
vaporization is constant at 45.9 kJ/mol, the
boiling point of C4H9OHwhen
the external pressure is 0.603 atm is ________
K.
The normal boiling point of liquid bromoethane is 311 K. Assuming that its molar heat of vaporization is constant at 27.1 kJ/mol, the boiling point of CH3Br when the external pressure is 1.35 atm is
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago