Mercury (Hg) vapor is toxic and readily absorbed from the lungs. At 20.oC, mercury (∆Hvap 5 59.1 kJ/mol) has a vapor pressure of 1.20x10-3 torr, which is high enough to be hazardous. To reduce the danger to workers in processing plants, Hg is cooled to lower its vapor pressure. At what temperature would the vapor pressure of Hg be at the safer level of 5.0x10-5 torr?

Q: X 8.3 For C₂H, at 25°C, B = -186 cm³/mol and C= 1.06 x 104 cm%/mol². (a) Use the virial equation…

A: Given data for C2H6 are as follows: B = -186 cm3/mol C = 1.06×104 cm6/mol2.

Q: Question 3: Several species of inhalational anaesthetics are used to start and maintain anaesthesia.…

A:

Q: A group of engineers is tasked to estimate the heat of vaporization (kJ/mol) of benzene at 20 °C…

A: Hello!! Thank you for asking the question. You have asked 3 different methods of calculation of the…

Q: A 0.692 g sample of glucose (C6H1206) is burned in a bomb calorimeter. The temperature of 575g of…

A: The temperature of 575 g of water rose from 21.70 to 25.22 degrees centigrade. As the temperature of…

Q: An air stream is contaminated with benzene, and your task is to remove the toxic benzene. An…

A: In mass transfer separation process. we use theoretical plates. These are also known as the…

Q: Pe b Natural gas is produced in a gas field Component outside of the City of Grande Prairie and is…

A:

Q: 6. Diffusivity. the diffusivity of volatile solvents is frequently measured using an Arnold cell.…

A:

Q: A vapor at x1 = 80 mol% is cooled at constant pressure to a temperature T = (Tdew + Tbubl)/2. What…

A: At x = 0.8, From Graph  [Draw Vertical Line form x = 0.8. At Intersection Point on Saturation Liquid…

Q: Aluminum oxide melts at 2300 °K, and the heat of fusion is 26 kcal/mole. Assuming that the internal…

A: Consider the aluminum oxide melts at 2300 K. The change in internal energy and  entropy take place…

Q: Suppose you want to cool a liter of water (equivalent to 1 kilogram) from room temperature (26°C) to…

A: If temperature of system has to increase then heat must to be added. When the temperature of a…

Q: For example, dilution of caustic lye using water (caustic lye 45% NaOH solution). pure solvent phase…

A: Given that:  Rate ,n = 100 kmol/hT1 = 303 kT2 = 373 kCp = 25.5909 -5.1414 x 10-3 T +11.1829 x 10-6…

Q: Calculate the entropy change when 1.00 mol of water at 0°C freezes to form (ce./For water, A fusHo =…

A:

Q: 5.0 kg of water at 70°C in a closed vessel of 0.5 m in volume are heated to 180°C and 1000 kPa.…

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Q: CMC of a surfactant in water at 25 oC is 0.5 g L−1 and at 45 oC is 0.3 g L−1. The molar mass of the…

A:

Q: Question 4-Propane gas (C3H8) is used as a propellant in aerosol cans. a. Calculate the density of…

A: Note: As per our guidelines, we are only allowed to answer first three subparts. To get the…

Q: 4.2 Prior to the discovery that freon-12 (CF₂Cl₂) was harmful to the Earth's ozone layer, it was…

A: Given Data The normal boiling point of (CF2Cl2)Freon -12  (T1 )=  -29.20C = 243.8K The enthalpy of…

Q: Determine the boiling point and vapor phase of a water-toluene mixture at atm (P = 760 mmHg),…

A: The general form of the Antoine equation is lnPi0 = Ai-BiT+Ci   Write the Antoine equations for the…

Q: The enthalpy of vaporization of a certain liquid is found to be 14.4 kJ mol-¹ at 180 K, its normal…

A:

Q: Vapor liquid-liquid equilibria of compounds A and B are shown in the diagram below. Determine the…

A:

Q: Q3: Wet material, containing 70% moisture on a wet basis, is to be dried at the rate of 0.15 kg/s in…

A: Given information, Wet moisture contains 70% moisture on wet basisProduct is 5% moistureFeed rate =…

Q: A binary mixture containing 50 mole % benzene and the remainder toluene at 10°C is fed continuously…

A: Draw the flow chart for the distillation process as follows:

Q: A certain mass of pure ethylene glycol, HOCH2CH2OH, is added to 2.00 kg of water in the cooling…

A: Given; The mass of water given is mw = 2 kg = 2000 g, The molar mass of water is, Mw = 18 g/mol, The…

Q: Sulphur can be recovered from underground elemental deposits via the Frasch process. In this…

A: Given thatT =165 CP = 2.5 MPaPT  = 6 atmρl  =1.811 gml =1.811 x 106  gm3ρs  =2.050 gml =2.05 x 106…

Q: Calculate AU (kJ/mol) for a process in which bromine vapor at 300 K is condensed at a constant…

A: The given data for bromine at different conditions are:

Q: A 0.9112 g sample of ethylene (C2H2) was burned in a bomb calorimeter whose total heat capacity is…

A: Given that, Mass of ethylene m = 0.9112 g Heat capacity C = 21.61 kJK Change in temperature ∆T =…

Q: A closed fixed-volume vessel contains a mixture of benzene and toluene in vapor-liquid equilibrium…

A: Given data: Pressure at vapor-liquid equilibrium = 1.5 bar Composition of air in the vapor phase =…

Q: 4.99 g of a solid (84.4 g mol-1) was dissolved in liquid water in a calorimeter with a calorimeter…

A: Mass of solid dissolved, mS = 4.99 g Molar mass of the solid, MS = 84.4 g/mol Calorimeter constant,…

Q: 4.2 Prior to the discovery that freon-12 (CF,CI,).was harmful to the Earth's ozone layer, it was…

A: Given, Enthalpy of vaporisation at its normal boiling point of -29.2°C = 20.25 kJ/mole.

Q: In a pressure range from 0 to 1500 atm, hydrogen follows the equation below. PV = RT(1+6.4x10-4P)…

A: Given that :PV = RT(1+ 6.4 X10-4P) T = 298 k P = 500 atm

Q: One half-cell in a voltaic cell is constructed from a copper wire electrode in a 3.0 x 10° M…

A:

Q: Q 46. Ammonia diffuses through a stagnant layer of air, 7 mm thick. The mole fractions of NH3 on the…

A: Given thatZ= 7 mm =7 x 10-3 m y1 = 0.82y2=0.16T = 28 C =28+273.15 =301.15 kP =101325 PaDAB = 2.14 x…

Q: In the experiment of finding the specific temperature of the metal by mixing you have a metal of…

A: Given that, Mass of metal aluminum, mAl = 67 g, specific heat CAl= 0.21 cal/g.⁰C Temperature of…

Q: A solution of Ba(NO3)2 is at elevated temperature (solubility of 30.6 Kg Ba(NO3)2/100 Kg H2O) and is…

A:

Q: Air flowing at 2 kg / s has a dry ball temperature of 46 °C and a wet bulb temperature of 25 °C,…

A:

Q: 10. Diethyl ether is a volatile, highly flammable organic liquid that is used mainly as a solvent.…

A: Given that : P1 = 401 mm Hg T1  = 18 C =291.15 KT2 = 32 C  = 32 +273.15 = 305.15 K Diethyl ether…

Q: A sample of 260.0 of liquid water is initially at a temperature of 75.0ºC. If that water is heated…

A: Combustion reactions are basically oxidation reactions. The combustion reaction take place when…

Q: 350.0 gram of ice at 0°C is placed in an insulated container at 20 °C and 1.0 L of water at 20°C was…

A: Specific heat of waterCpwater=4.182J/g∘CHeat of fusion of iceL=6.01kJ/moldensity of…

Q: 17.5 grams of ice at 0 degrees at constant pressure is thrown into 125 grams of water at 52 degrees,…

A:

Q: Example 8.3-6: A gas stream containing 8 mole% CO with CO₂ at 500 °C is fed to a heat boiler. The…

A: In this system, the heat gained by the water will be equal to the gas stream's lost heat. Specific…

Q: How much heat is released when 6.38 grams of Ag(s) (m.m = 107.9 g/mol) reacts by the equation shown…

A: Given: Mass of Ag(s) taken m = 6.38 grams  Molecular weight of Ag = 107.9 g/mol Heat released q (kJ)…

Introduction and Basic Calculations in Multiphase Systems

Chemical calculations involve material and energy balance calculations which enable engineers to calculate material and energy requirements in various chemical processes. In addition to this, chemical calculations help to study the behavior and properties of gases, liquids, and their mixtures.