The molar enthalpy of vaporization of boron tribromide is 30.5 kJ/mol, and its normal boiling point is 91°C. What is the vapor pressure of boron tribromide at 20.°C? (R = 8.314 J/K • mol)

Q: Energy Constants for H2O 334 J/g = Heat of Fusion (Hf) 2260 J/g = Heat of Vaporization (Hv) 2.11…

A: Heat absorbed by the sample is calculated as follows: Heat = Heat required to convert ice to water…

Q: 4. The specific heat capacity of silver is 0,235J/g⋅K. Its melting point is 962°C, and its heat of…

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Q: Calculate the vapor pressure of acetone at 69.1 C.

A: A concept which is used  when heat and work is needed to be calculated in science and engineering.…

Q: Diethyl ether is a common solvent in organic chemistry. The vapor pressure of diethyl ether is 401…

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Q: Describe what is happening at point #4 on this phase diagram. This diagram represents a phase…

A: The given phase diagram can also be represented as,

Q: The vapor pressure of water at 25 ∘C is 23.8 torr, and the heat of vaporization of water at 25 ∘C is…

A: Given information,    The vapor pressure of water at 25 ∘C is 23.8 torr.    The heat of vaporization…

Q: The vapor pressure of water at 20C is 25 mmHg and 525 mmHg at 90C. Calculate the heat of…

A: Given: The vapor pressure of water  P1=    25 mmHg At 20°C P2 =   525 mmHg at 90°C

Q: The vapor pressure of water at 5 degrees Celsius is 0.008612 atm. Calculate the vapor pressure in…

A: Convert vapour pressure from atm to kpa--

Q: The essential oil found in cloves, eugenol, can be isolated by steam distillation because it is…

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Q: The vapor pressure of ammonia at –50°C is 0.4034 atm; at 0°C, it is 4.2380 atm. (a) Calculate the…

A: The molar enthalpy of vaporization can be calculated from the below formula:

Q: Calculate the amount of heat is required to convert 10.0 g of water at 60.0 °C to steam at 120.0 °C.…

A: The amount of heat required to convert 10.0 g of water at 60.0°C to steam at 120.0°C is to be…

Q: Determine the vapor pressure (in mmHg) of a substance at 19°C, whose normal boiling point is 101°C…

A: Expression for Clasius -Clapeyron equation   Where  p1 = Initial vapor pressure p2 = Final vapor…

Q: If 100.0 g of ice at -10.0°C is placed in 200. g of water at 90.0°C in an insulated container, what…

A: Given : Mass of ice = 100.0 g Initial temperature of ice = -10.0 oC Mass of hot water = 200 g And…

Q: The vapor pressure of ethanol, C2, H5, OH, at 50.0°C is 233 mm Hg, and its normal boiling point at 1…

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Q: Reler to the phase diagram below when answenng the questions on this worksheet. Begin by adding S,…

A: A substance can exist in 3 different phases- solid,liquid,gas.Phase diagram describes effect of…

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: Mercury is the only metal that is a liquid at room temperature. When mercury vapor is inhaled, it is…

A: According to the clausius clapeyron equation, where P2 = vapour pressure at temperature 2  P1 =…

Q: On the phase diagram shown below, which segment corresponds to the conditions of temperature and…

A: Point A is known as triple point at which solid, liquid and gas coexist. The area to the left of the…

Q: The vapor pressure of water at 25°C is 3.13×10-2 atm, and the heat of vaporization of water at 25°C…

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Q: Diethyl ether is a volatile, highly flammable organic liquid that is used mainly as a solvent.  The…

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Q: please help on this problem

A: Mole fraction is the ratio of number of moles of a substance and total number of moles in the…

Q: As predicted by the phase diagram below, which substance will exist only as a solid at 25°C and 1…

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Q: The vapor pressure of water at 200C is 25 mmHg and 525 mmHg at 900C. Calculate the heat of…

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Q: Water is heated to 0°C with a constant pressure of 1x10-3 atm     Water is compressed to a…

A: 1) Water is heated to 0°C with a constant pressure of 1x10-3 atm: at this condition solid water…

Q: The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in…

A: The given data is as follows: T(K) P(KPa) 225 3.66 675 5.43

Q: Consider the phase diagram of carbon dioxide. What is the pressure at the triple point?

A: Triple point-> Such point in phase diagram at which the solid , liquid and vapour phases of…

Q: Heat of Fusion water =334.4 J/g; Heat of Vaporization water = 2257 J/g; 4.18 J = 1 cal; Specific…

A: Answer :-  1) The Heat needed to melt 450 g Ice at  0 °C = 150480 J  2) The Heat needed to heat 2350…

Q: At room temperature, 25°C, the vapor pressure of water is 23.8 Torr. Calculate the vapor pressure of…

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Q: The standard molar enthalpy of vaporization of ammonia is 23.35 kJ/mol at its standard boiling point…

A: P1 = 1 atm P2 =? T1 = -33.4°= 239.75 K T2 = 15°= 288.15 K R= 8.314 J / mol. K Enthalpy of…

Q: The normal boiling point of a substance is 433 °C. Calculate the pressure at which this substance…

A: this solution is done using the clausius-clapeyron equation .

Q: 106 Diamond 105 Liquid 104 103 Graphite 102 101 Vapor 100 2000 4000 6000 Temperature (°C) What is…

A: A phase diagram of any substance tells us the phase or state in which the substance exists at a…

Q: For pentane, the ∆H° of vaporization is 26.22 kJ/mol and the ∆S° of vaporization is 87.88 J/mol･K.…

A: Given, standard enthalpy of vaporization ∆H°(vap) =26.22 kJmolstandard entropy of vaporization…

Q: Question 8 Define fusion. The phase transition from solid to gas. The phase transition from gas to…

A: When we increase the temperature of a solid substance it changes into a liquid phase at the melting…

Q: If 100.0 g of ice at -10.0°C is placed in 200. g of water at 90.0°C in an insulated container, what…

A: Given : Mass of ice = 100.0 g Initial temperature of ice = -10.0 oC Mass of hot water = 200 g And…

Q: Use the phase diagram for water to answer the following: 1. At what temperature and pressure does…

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Q: The normal boiling point of mercury (Hg) is 356.7 °C. What is the vapor pressure of mercury at 335…

A: The relation of the vapor pressure of a substance between any two states P1 and P2 at the operating…

Q: The phase diagram for elemental sulfur is shown in Figure 6.18. (a) How many allotropes are shown?…

A: The term phase diagram can be defineThe term phase diagram can be defined as the graphical…

Q: The vapor pressure of ethanol is 1.00 x 10“ mmHg at 34.90°C. What is its vapor pressure at 59.75°C?…

A: The given temperature in Kelvin is calculated as shown below. T1=34.90oC+273.15=308.05…

Q: Refer to the phase diagram below when answering the questions on this worksheet. Begin by adding S,…

A: The phase diagram given is,

Q: The atmospheric pressure in Ogden, Utah is 646 mm Hg. The boiling point of water here will be a.…

A: Given, atmospheric pressure =646 mm Hg. we are asked, what will be the effect on boiling point of…

Q: A 2.80−g sample of water is injected into an evacuated 6.00−L flask at 65.0°C. What percentage of…

A: The ideal gas law describes how the pressure P, volume V, and temperature T of an ideal gas are…

Q: The following information is given for cobalt at 1atm: 3097°C AHvap = 6.60 kJ/g 263 J/g boiling…

A: Given the mass of liquid cobalt sample, m = 39.8 g  initial temperature of liquid cobalt, Ti = 1495…

Q: The vapor pressure of mercury at 298 K is 0.00270 mmHg. If the normal boiling point of mercury is…

A: Use Clausius Clapeyron equation to solve this,ln P1P2 = ΔHvapR1T2 - 1T1 Given that,T1 = 298 K P1 =…

Q: 6.) Diethyl ether is a volatile, highly flammable organic liquid that is used mainly as a solvent.…

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Q: The normal boiling point of mercury (Hg) is 356.7 °C. What is the vapor pressure of mercury at 327.5…

A: In this question, we want to determine the vapor Pressure of mercury at 327.5°C in atm unit.  You…

Q: CO2 sublimes at -78 °C. SiO2 melts at 1705 °C and boils at 2477 °C. Why is there such a large…

A: Given information: Sublimation point of CO2 = -78 °C Melting point of SiO2 = 1705 °C  Boiling point…