100 atm 1 atm 0.118 atm 114 °C 184 °C 535 °C Temperature (not to scale) Pressure (not to scale)

Q: 16) 1-butanethiol, one of the compounds giving skunks their distinctive odor, freezes at -115.7°C…

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Q: Determine the vapor pressure (in mm Hg) of a substance at 29°C, whose normal boiling point is 76°C…

A: Given,  Vapor pressure of the substance = P1 = 760 mmHg at temperature = T1 = 76°C Vapor pressure of…

Q: The figure below is the phase diagram of a purse substance. (1), (II) and (III) are the 3 phases of…

A: The phase diagram is a graphical representation of the physical states of a substance under…

Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0 C and 315.0 Torr at 45.0 "C. Calculate…

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Q: The standard enthalpy of vaporization (H°vap) of carbon tetrachloride (CCl4) is 34.6 kJ/mol. The…

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Q: The vapor pressure of toluene at 90 deg celcius is 0.532 atm. The molar enthalpy of vaporization of…

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Q: Naphthalene (C10H8) is the main ingredient in traditionalmothballs. Its normal melting point is 81…

A: The triple point is defined as that temperature and pressure where all the three phases exist in…

Q: At 47.77 °C, the vapor pressure of a particular compound is 8.53 kPa, and at 143.91 °C, its vapor…

A: Given that: temperature T1 = 47.77 °C = 47.77 + 273 = 320.77 K pressure P1 =  8.53 kPa temperature…

Q: Naphthalene 1C10H82 is the main ingredient in traditionalmothballs. Its normal melting point is 81…

A: The triple point is defined as that temperature and pressure where all the three phases exist in…

Q: At 20.11 °C, the vapor pressure of a particular compound is 8.22 kPa, and at 146.6 °C, its vapor…

A: Dear student , since you have posted multiple questions we will allow to solve only first question…

Q: Carbon tetrachloride, CCl4, was once used as a dry-cleaning solvent but is no longer used because it…

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Q: Determine the vapor pressure in mm Hg of a substance at 45 C if its normal boiling point is 115 C…

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Q: The vapor pressure of ethanol at 34.7 °C is 100.0 mm Hg, and ΔHvap = 38.6 kJ/mol. What is the…

A: The relationship between vapor pressure and temperature is given by clausius clapeyron equation  The…

Q: A solution of carbon tetrachloride and acetic acid CH3COOH that is 90.% carbon tetrachloride by mass…

A: Given:

Q: The enthalpy of vaporization of Substance X is 16.0kJmol and its normal boiling point is 123.°C.…

A: We have to Calculate the vapor pressure of X at −35°C.

Q: Elemental carbon has one gas phase, one liquid phase, and two different solid phases, as shown in…

A: a.

Q: 2. The boiling point of methanol is 338 K. What is the vapor pressure of methanol at 250 K, given…

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Q: 8. (a) Use the Clausius-Clapeyron equation and calculate the vapor pressure (mm Hg) of fluoroethane…

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Q: Benzene has a vapor pressure of 183 mmHg at 40 °C. Taking its heat of vaporization to be 30.8…

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Q: 3. The molar enthalpy of vaporization of carbon disulfide is 26.74 kJ/mol, and its normal boiling…

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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: he phase diagram for a pure substance is shown above. Use this diagram and your knowledge about…

A: This is the phase diagram of water. A) Point V represents the Triple point. At this triple point,…

Q: 578,070 J of heat is required to raise the temperature of 15.0 moles of liquid methanol, CH3OH, from…

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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…

Q: A liquid at 20.0 °C exhibits a vapor pressure of 0.555 atm. The liquid is heated to 60.0 °C. What is…

A: Clausius Clapeyron equation is Where P1 is vapour pressure at temperature T1 P2 is vapour pressure…

Q: As defined in the chapter on liquids and solids, the boiling point of a liquid is the temperature at…

A: At the boiling point, the liquid and the vapor phases exist in an equilibrium. H2O l ↔ H2O g

Q: How much heat, in joules and in calories, must be added to a 89.1 g chromium block with a specific…

A: The relationship between the amount of heat of a substance and mass, specific heat, and change in…

Q: ) The vapor pressure of benzene, C6H6, is 40.1 mmHg at 7.60°C. What is the vapor pressure at 60.6°C…

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Q: Diethyl ether has a  ΔH(vap)° of 29.1 kJ/mol and a vapor pres-sure of 0.703 atm at 25.0° C.…

A: lnP2P1=-⊿HvapR1T2-1T1where,P2=final vapour pressureP1=initial vapour pressureT2=final…

Q: A compound has a vapor pressure of 100 mmHg at 267 K and a normal boiling point of 338 K.  What is…

A: This problem will be solved by using Claudius-Clapeyron equation . From this equation if the vapour…

Q: Ethanol, with ΔHvap = 40.5 kJ mol-1, has a higher ΔHvap than methanol, which is 35.2 kJ mol-1, due…

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Q: A student obtained a solid product in a laboratory synthesis. To verify the identity of the solid,…

A: The temperature at which a solid substance maintains an equilibrium with its liquid phase is known…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.