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The diffusion constant (Do) and activation energy (Q) of C in BCC Fe is 0.01 cm2/sec and 80kJ/mol respectively. In FCC Fe, the values are 0.21 cm2/sec and 148kJ/mol. At exactly 910oC these two phases can co-exist.
(a) Calculate the diffusion co-efficient at 910oC (gas constant R=8.31J/mol K) (b) Determine how far carbon will diffuse in the two phases in 1h
Determine maximum total bending moment (static plus dynamic) of the beam under steady-state conditions.
Show how did you do the maintenance during your workshop
Draw conclusions concerning the process, and relate your interpretation to the possible existence of chance and assignable causes of variation.
Saturated water vapor at 200oC is isothermally condensed to a saturated liquid in a piston-cylinder device. Calculate the heat transfer and the work done during this process in kJ/kg.
Solve for the pressure of a gas using both equations at a temperature of 400K and a molar volume of 1x 10-4 m3/mol. For the van der Waals EOS, use parameters of a= 4.1x10-1 (m3/mol)2 Pa, and b=4.3x10-5 m3/mol.
Determine the peak runoff from 500 ft of pavement(32ft wide) that drains toward a gutter(for 10 years freq. storm), the pavement slope is .0005, n=.016 and c=.9
State what the joints are in the system and knowledge of computational kinematics explain what you believe is the procedure to calculate each variable.
Calculate real gas pseudopressure at a pressure of 1902.7 psia using the following data and a base pressure of 102.7 psia. Was the calculation of real gas pseudopressure necessary for this gas? Explain your answer.
the manometer shown above in problem 1 above contains water and kerosene. with both tubes open to the atmosphere, the free surface elevations differ by H=20mm determine the elevation difference when a pressure of 98.0 Pa is applied to the right.
what is the specific heat of air in US customary units given that its value in SI units is approximately 1 kN.m/kg.K?
Large stationary brayton cycly gas turbine power plant delivers a powr output of 100MW to an electric generator . Minimum temperature is 300K so T1= 300k max temp is 1600k
Taking the temperature of the surrounding surfaces to be 20°C also, determine the rate of heat loss from the steam pipe.
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