The vapor pressure of acetone (C3H,O) at 39.5°C is 400 torr. (a) If the boiling point of acetone is 56.5°C, calculate its enthalpy of vaporization (AH,vap; in kJ/mol). (b) Using calculated (AH,vap and vapor pressure at 39.5, calculate the vapor pressure of acetone at 25°C. (R = 8.314 J/(mol.K))

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A:

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A: Given data,∆Hvap for ethanol=40.5kJ/molInitial pressure (P1)=0.0992atmInitial…

Q: The heat of vaporization AH, of methanol (CH;OH) is 35.3 kJ/mol. Calculate th

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Q: Isopropyl alcohol, C3H8O, is marketed as “rubbing alcohol.” Its vapor pressure is 100 torr at 39.5°C…

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Q: Given that the heat of vaporization of 1 propanol is 47.2 kj/mol, and the vapor pressure is 10.0…

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A: The conversion of one phase into another phase by some external energy is called phase transitions.…

Q: A sample of C6H14is placed in a cosed, evacuated 560ml container at a temperature of 289 K. It is…

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Q: What phase of water exist at 100° C and 5 atm? At 200°C and 1 atm?

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Q: Determine the normal boiling point of a liquid with vapor pressure 63.8 mmHg at 36.50°C, given that…

A: Accoding to Clausius Clapeyron equation,At normal boling point, the vapor pressure equal= 760 mmHg

Q: Diethyl ether (CH3CH2OCH2CH3) was one of the first chemicals used as an anesthetic. At 34.6°C,…

A: According to the clausius clapeyron equation, ln(P2 / P1 ) = (-ΔHvap / R ) ( 1/T2 - 1/T1 )  where P2…

Q: In kJ/mol, what is the enthalpy kf vaporization, Hvap, for a substance that has a vapor pressure or…

A: We will solve this question using clausius clapeyron equation.

Q: 3. The vapor pressure of water at 16°C is 13.6 torr and it is 15.5 torr at 18°C. What is the vapor…

A: The solution is given below -

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A: Concept introduction: Tetramer means four molecules are joined together. Hydrogen bonding is the…

Q: How much heat is required to evaporate 100.0 g of liquid ammonia, NH3, at its boiling point if its…

A: Given: Mass of NH3  = 100.0 g ΔHvap = 4.8 kJ/mol

Q: Chloroform, CHCl3, has a normal boiling point of 61.7 oC and has an enthalpy of vaporization of 31.4…

A: Since at normal boiling point, pressure = 1 atm = vapour pressure of liquid  Hence at 61.7 oC vapour…

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Q: Suppose that 117.2 J of heat energy is required to completely vaporize 4.3 g of a pure liquid. If…

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Q: a) Using the graph of ln P vs 1/T (in Kelvin) for water vapor pressure, what is the vapor pressure…

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Q: he organic compound n-hexane, C6H14, boils at 69.0°C. What is its molar heat of vaporization in…

A: We have to calculate the molar heat of vaporization.

Q: The molar enthalpy of vaporization of hexane (C6H14) is 28.9 kJ/mol, and its normal boiling point is…

A: Clausius – Clapeyron equation is used to calculate the vapor pressure at another temperature…

Q: The vapor pressure of liquid diethyl ether, C,H;OC,Hs, is 100. mm Hg at 262 K. A sample of C,H;OC,Hg…

A: Given: Vapor pressure of diethyl ether = 100 mmHg. Initial volume of container = 530 mL. Final…

Q: The Enthalpy of Vaporization of 1-chlorobutane, C4H9Cl, is 30.4 kJ/mol at a boiling point of 78.6…

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Q: The vapor pressure of benzene is 224 mmHg at 45 °C and 648 mmHg at 75 °C. (a) Find the enthalpy of…

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Q: 4- Consider the phase diagram given below. What phases are present at points A through H? Identify…

A: To understand the phase diagram, certain important terms are needed to be explained first. In a…

Q: What type of intermolecular forces of attraction is CO2? Justify the answer

A: The attraction forces between the different molecules are known as intermolecular forces.

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A: Given : Normal boiling point of Pd = 3140 oC And heat of vaporisation of Pd = 353 KJ/mol = 353000…

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A: GivenX(l) → X (g)∆H° = 433.4 kJ/mol1 kJ = 1000 J∆H° = 433400 J/mol∆S° = 101.1 J/K.mol

Q: The molar heats of fusion and sublimation of lead are 4.77 and 182.8 kJ/mol, respectively. Estimate…

A: Given Data: The heat of fusion is 4.77 kJ/mol. The heat of sublimation is 182.8 kJ/mol.

Q: 1. The vapor pressure of water at 25C is 23.76 torr. If 1.25g of water is enclosed in a 1.5L…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: At 23.8 °C, the vapor pressure of isopropyl alcohol (rubbing alcohol) is 40. torr. At 39.5 °C, the…

A: Enthalpy of vaporization can be calculated by following formula

Q: For acetone (CH3)2CO, the normal boiling point is 56.5 °C and the enthalpy of vaporization is 31.3…

A: Clausius-Clapeyron equation pertains to the relationship between the pressure and temperature. It is…

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A: Here we are required to find the Enthalpy of vaporization .

Q: The vapor pressure of liquid propyl amine, C3H¬NH2, is 100 mm Hg at 274 K. A sample of C3H¬NH2 is…

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Q: Which compound or element has the lowest boiling point: Cl 2, KI, or LiF?

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Q: Diethyl ether (CH;CH2OCH2CH3) was one of the first chemicals used as an anesthetic. At 34.6°C,…

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Q: In the phase diagram of water, where is the liquid-vapor boundary? O c O B O A OD

A: Ans : A ( On OA curve the liquid and vapor at equlibrium). see below.

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A:

Q: Carbon tetrachloride, CCl 4 , once used as a dry cleaning solvent, but is no longer used because it…

A: Given: Temperature (T1) = 57.8 oC = 330.95 K Vapor pressure  (P1) = 54.0 kPa = 0.533 atm Enthalpy of…

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Q: From the following vapor pressure data for ethanol, an estimate of the molar heat of vaporization of…

A: use clausius clapeyron equation to find the molar heat of vaporization of Ethanol  Let  Initial…

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A: Given,ΔH = 25 kj/molP2 = 330 mm Hg

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Q: The vapor pressure of liquid iodomethane, CH3I, is 40.0 mm Hg at 249 K. A sample of CH3I is placed…

A: The answer is as follows:

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.