Calculate w and ΔE when 1 mole of a liquid is vaporized at its boiling point (80.°C) and 1.00 atm pressure. ΔH for the vaporization of the liquid is 30.7 kJ/mol at 80.°C. Assume the volume of 1 mole of liquid is negligible as compared to the volume of 1 mole of gas at 80.°C and 1.00 atm.

Q: Calculate the enthalpy of propane in kJ/mole at 1000K assuming a representative specific heat value…

A: Given   Specific heat, CP = 128.7 J/mole.K   Temperature, T1 = 298 K                         T2 =…

Q: One mole of oxygen gas is at a pressure of 6 atm and a temperature of 7°C. (a) If the gas is heated…

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Q: uestioned how much O2 are

A: PV = nRT   a) n air = pV R     nair = (0.99 atm)(32.5cm^3)(0.001L)/1cm^3/ (0.08 21L-atm/mol- k…

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Q: Calculate the pounds of water removed per 1000 ft3 of entering gas. The vapor pressure of water at…

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Q: What mass of sulfur is contained in a 57 m’ tank if the pressure and temperature are 1 atm and 21°C…

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Q: Estimate the pressure kPa(a) in the tank and density (kg/m3 ) of the gas mixture in the tank where…

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Q: Define the Specific gravities of some substances at 0°C?

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Q: 20. Would a parcel of air at 35 degrees C with a water vapor content of 17.5 g/kg be saturated or…

A: According to the question: ps=610.78×ett+238.317.2694 (in pascals) where is the temperature in…

Q: At 127oC, HgI2 undergoes a polymorphic change from the red to the yellow form. The enthalpy of…

A: Given ∆Vm=5.4 cm3 mol-1       =5.4×10-6 m3. mol-1 ∆Hm=1250 J mol-1 T=127oC=400 K

Q: Consider a container of volume 250 cm3 that is divided into two compartments of equal size. In the…

A: According to the problem, both Neon and Argon have the same temperature, volume, and pressure.…

Q: cermine the number of mole of gas that has been raised by 5 K, the energy absorbed was 550 J, and…

A: Option 2 is correct

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Q: A mixture of 15 lb -mol N2 and 30 lb-mol CH4 is being heated from 400 F to 800 F at 1 atm pressure.…

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Q: The viscosity values for the H2 and Freon-12 gas mixtures at 25 ° C and 1 atm pressure and the mole…

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Q: 34) Hydrogen is allowed to diffuse through a palladium plate that is 0.015m thick at 500°C. The…

A: given data thickness of the plate ∆x = 0.015mconcentration of carbon at both side are 0.65 and 0.30…

Q: The diffusion coefficients for iron in nickel are given at two temperatures: T (K) D (m2/s) 1273…

A: Given Data: The diffusion constant at T1 = 1273 K is D1=9.4×10-16 m2/s The diffusion constant at…

Q: 1) 1 mole of a monatomic ide al gas initially at 70 F and 0.83 atm to 30 °F by placing the gas in…

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Q: The temperature of 2 moles of a monatomic gas increases from 20 °C to 300 °C. By how many joules…

A: Solution: For monoatomic gases, molar specific heat capacity of a gas at constant volume (Cv) is…

Q: A vessel contains a gaseous mixture of composition by volume, 80% H, and 20% CO. It is desired that…

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Q: A 15 g sample of Cobalt pellets (specific heat capacity = 0.421 J/g·°C) and a 12 g sample of…

A: mass of Cobalt mc = 15 g specific heat capacity of Cobalt cc = 0.421 J/g oC mass of Magnesium mm =…

Q: A sample containing 1.0 mole of oxygen gas initially at 45 degrees Celsius is heated to 110 degrees…

A: Road map: change in enthalpy = m*cp*delta T Here Cp must be integrated. 1 mole O2 =32 gm O2 = 0.032…

Q: The composition of a mixture of gases 60% carbon dioxide, 20%oxygen and 20% Helium by volume. What…

A: The apparent molecular weight of this mixture: 33.6 kg/kmol

Q: In an electrolysis of water experiment, 39.75 mL of H2 gas was collected over water at 60.0 °C and…

A: Answer:

Q: .Nitrogen from a gaseous phase is to be diffused into pure iron at 669 °C. If the surface…

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Q: A mixture of ideal gases consist of 2 kmol CH4, 1kmol N2, and 1kmol O2 all at 20 degree C and 20…

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Q: A hydrogen gas is contained in a cylinder with a volume of 2.50 × 10¯³ m³ at atmospheric pressure.…

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Q: The gas constant of CO2, N2, and He are 0.1889, 0.2968, and 2.077 kJ/kg- K respectively. The three…

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Q: Methane is diffusing at steady state through a 0.5mm diameter and 4mm long tube containing nitrogen…

A: Methane is diffusing at steady state through      Dia=0.5 mm Length=4mm Nitrogen gas @ pressure…

Q: The volumetric analysis of a mixture of gases is 30 percent oxygen, 40 percent nitrogen, 10 percent…

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Q: a) In a simple experiment, a solid with a diameter 3 mm and density 1500 kg/m3 is released from a…

A: Since these are two different questions, so i am answering only the first one: Assumptions: 1. Air…

Q: The equipment room housing the compressor and condenser of a refrigerant ammonia system has…

A: Given data: Volume of room = 5 m x 4 m x 3 m Pressure in the room = 1 bar = 101325 Pa Exposure time…

Q: A 5.00-g sample of aluminum pellets (specific heat capacity = 0.89 J/°C • g) and a 10.00-g sample of…

A: Given, mAl=5 gCAl=0.89 J/0C.gTAl,i=1000C mFe=10 gCFe=0.45 J/0C.gTFe,i=1000C mwater=97.3…

Q: The pressure and temperature of a mixture of equal masses of hydrogen are 120 kPa and 27 degree…

A: GivenP=120kPaT=27oC=27+273=300KRh=4.125 kJ/kgKRo=0.2598 kJ/kgK

Q: 0.1 moles of an ideal gas at pressure p= 1.000 bar is confined to a cylinder by a piston. The…

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Q: In a closed container of constant volume, there is a gas mixture of 10kmol O2 and 20kmol CO2. The…

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Q: The

A: The first step reaction of Ostwald process:4NH3 + 5O2 = 6H2O + 4NOGiven masses of reactants: m(NH3)…

Q: 2 moles of ideal gas has the transformations shown in the diagram below where the 2-3 is an…

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.