**JUST PART C PLEASE** The pressure in a pipeline that transports helium gas at a rate of 5 lbm/s is maintained at 14.7 psia by venting helium to the atmosphere through a 0.25-inch internal diameter vertical tube that extends10 ft into the air. Helium and atmospheric air are at 60F. The diffusion coefficient for a mixture of helium with air is 2.79 ft2/h at 77oF. Assume the mole fraction of helium in the atmosphere is negligible, and the mole fraction of air in the helium pipeline is negligible. Determine the following: (a) The mass flow rate of helium flowing to the atmosphere through the tube. (b) The mass flow rate of air that infiltrates into the pipeline. (c) The net mass flow rate in the vertical tube.

Q: Consider water that is at 7MPa pressure and has an enthalpy of h-3261.7 (kJ/kg). What is entropy per…

A: Given:Pressure of water, P=7 MPaEnthalpy of water, h=3261.7 kJ/kg

Q: In an internal combustion engine, an air/fuel mixture at atmospheric pressure and 24 °C is…

A:

Q: I dry air and water vapour is at a temperature of 21°C and t

A:

Q: - Ammonia in air is a toxic mixture when the ammonia is 0.45% by volu Calculate how much leakage…

A:

Q: Air (diatomic, MW = 28.8664 g/ mol) in an automobile tire is maintained at a pressure of 220 ka…

A: The initial mass flow rate. Given: The gauge pressure in the tire is Pgauge=220 kPa. The atmospheric…

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

A:

Q: If Xf = 42000 ppm, Xb= 70000 ppm, and Md= 1 kg/s then the mass flow rate of the brine is

A: Given DataXf=42000 ppmXb=70000 ppmMd=1 kg/s

Q: A river has a flowrate of 3 m3/s. A stream discharges into the river at a flowrate of 0.05 m3/s. A…

A: Given, Flow rate of river = Qr = 3 m3/sConcentration of tracer in river flow = Cr = 0 mg/LFlow rate…

Q: Humid air flows in a duct at atmospheric pressure. The dry bulb temperature and humidity ratio…

A:

Q: A room has dimensions of approximately 10m x 10m x 3m. Assume the air inside the room is initial at…

A: Given: Dimensions of the room = 10 x 10 x 3 mInitial temperature of air Ti = 20°C Pressure P = 100…

Q: lagrange interpolation is to be used to represent the enthalpy of saturated air as a function of the…

A:

Q: Air enters a natural draught cooling tower at 1.013 bar and 13 °C and relative humidity 50%. Water…

A: Given:

Q: An insulated rigid tank initially contains 1.4-kg saturated liquid water at 200°C and air. At this…

A: Given : The mass of saturated liquid is  The temperature is

Q: Air is heated and humidified in air conditioning process. Mist humidifier is used. The mass flow…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: Air at 90 degree C and 1.0 atm contains 10 mol% water. A continuous stream of this air enters a…

A:

Q: Methane is flowing through an insulated 15-cm diameter pipe. The entering conditions are kPa, 100°C,…

A: Given data,d=15cmf=0.023P1=600kpaT1=100°Cm=5kgs

Q: The mass diffusion rate dm/dt across a boundary between two different metals is a function of the…

A: Solution:

Q: Macmillan L Nitrogen gas enters a 0.450 m diameter pipe at 30.0 °C, 2.60 atm (absolute), and 6.30…

A: At inlet section,d1=0.450 mT1=30 °C4P1=2.60 atm (abs)u1=6.30 m/sz1=24 ftAt exit section,T2=30…

Q: 5 kg of 371.15 K water are mixed with 12 kg of water. If the final mixture has a temperature of…

A: Given: m1 = 5kg m2 = 12kg T1 = 371.15 K final T = 301.15 K

Atomic diffusion in solids

In material science, diffusion can take place in solid, liquid, and gases. In solids, atomic diffusion can take place with the help of thermally activated and randomly vibrating atoms. The atomic diffusion in solids is complex and very slow in comparison to atomic diffusion in liquids and gases because the interatomic distance between the atoms is smaller in solids as compared to liquids and gases.