A thermal evaporator is used to deposit aluminum. The aluminum charge is maintained at a uniform temperature of 1100 o C. If the the vapor pressure of aluminum is about 1x10-3 torr at that temperature, calculate the evaporation rate of aluminum?

Q: At 100°C, the heat of vaporization of water is 40.7 kJ/mc What is the vapor pressure at 110°C?

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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 =…

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Q: Consider an alloy that is undergoing carburizing process, initially has a uniform carbon…

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Q: An aluminum-alloy rod has a length of 9.9269 cm at 30.00°C and a length of 9.9686 cm at the boiling…

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Q: the sample for 10 hours at 930°C to achieve 0.4% carbon, 1cm from the surface. To Consider the…

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Q: If 10kg of water at 920kPa pressure and at

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Q: why diffusion coefficient of caarbon inBCC and FCC iron at temperature 912 is different?

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Q: What do you mean by condensation? Explain in details.

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Q: The preexponential and activation energy for the diffusion of chromium in nickel are 1.1 × 104 m2/s…

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Q: A plate of iron is exposed to a carburizing atmosphere on one side and a decarburizing atmosphere on…

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Q: Diffusion of carbon into the surface of BCC steel at 600oC for 10 hours results in a carbon…

A: Fick's law of diffusion states that the molar flux of the substance due to diffusion is always…

Q: The diffusion coefficient of nickel in an austenitic stainless steel is 10-22 m2/s at 500°C and…

A: Given data: T1=500°CD1=10-22 m2/sT2=1000°CD2=10-15 m2/s Need to determine the activation energy for…

Q: One mole of an ideal gas is confined in a 0.3-m diameter cylinder by a piston on which rests a…

A: We are suppose to solve only 3 subparts. Please post other parts as a separate question.

Q: Which statements about case hardening are correct? The process makes it possible to harden local…

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Q: 100 m3/h of a gas mixture containing 84.0 mol % N2 and the balance n-Heptane (the condensable…

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Q: At approximately what temperature (in Kelvin) would a specimen of an alloy have to be carburized for…

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Q: A plate of iron is exposed to a carburizing atmosphere on one side and a decarburizing atmosphere on…

A: Given data:

Q: t approximately what temperature (in Kelvin) would a specimen of an alloy have to be carburized for…

A: Given data as per question T1=820°C=820+273=1093 Kτ1=12 hDo=1.6×10-6 m2/sQd=159 kJ/molAndτ2=1.1 h

Q: Calculate the heat required in terms of BTU to vaporize 75-kg of water at a saturation temperature…

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Q: Derive the dynamics of a geometric brownian motion with zero drift and constant diffusion term.

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Q: The purification of hydrogen gas is possible by diffusion through a thin palladium sheet. Calculate…

A: Given dATA  t = 4.3 mm  A = .76 m2 T = 500 °C Ca = Position of higher concentration = 4.2  Cb =…

Q: Define the General Heat/Diffusion Equation ?

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Q: AH of vaporization of water is 439.2 cal/g at the normal boing point. Since virus can survive at…

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Q: The wear resistance of a steel shaft is to be improved by hardening its surface by increasing the…

A: Explanation: Here we have       Where:        = 0.0025 % by weight of N        = 0.45 % by weight…

Q: A molar volume of gaseous ammonia that * is contained in vessel is (1021.2 cm3 /mole} immersed in a…

A: Given data: Molar volume = v = 1021.2 cm3/mole = 1021.2 x 10-6 m3/moleTemperature  = T = 65°C = 65 +…

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Q: A flat plug 30 mm thick having an area of 6×10-3 m2 is used to close an opening in a container. The…

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Q: A BCC iron alloy containing 0.05 wt% C is carburized at 1050°C such that the carbon concentration is…

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Q: 9. In the figure below the temperature dependence of diffusivity of Carbon and Aluminum in iron and…

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Q: The following experiment is carried out: 10 moles of a gas are placed in a piston equipped with a…

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Q: Mechanical Engineering At approximately what temperature (in Kelvin) would a specimen of an alloy…

A: Answer: The temperature at which a specimen of an alloy to be carburized for 1.3 hr: T = 1180.877 K

Q: The purification of hydrogen gas is possible by diffusion through a thin palladium sheet. Calculate…

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Q: For a steel alloy it has been determined that a carburizing heat treatment of 18 h duration at 885°C…

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Q: The diffusion coefficient for carbon in BCC iron at 400C and 900C is given as 3.80x10-13 and…

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Q: A practical example of steady-state diffusion is the purification of hydrogen gas where one side of…

A: Given data: Thickness of palladium sheet: x = 6 mm = 0.006 m Surface area of palladium sheet: A =…

Q: A bomb calorimeter is used to determine the Higher Caloric Value of an oil sample . the mass of the…

A: Mass of the sample =2.12g" data-mce-style="display: inline-block; line-height: 0; text-indent: 0px;…