Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Gaseous hydrogen at 150 psia and 80°F is stored in a small, spherical, steel pressure vessel having an inside diameter of 4 in. and a wall thickness of 0.125 in. At these conditions, the solubility of hydrogen in steel is 0.094 lbmol/ft3 and the diffusivity of hydrogen in steel is 3.0 x 10-9 cm2/s. If the inner surface of the vessel remains saturated at the existing hydrogen pressure and the hydrogen partial pressure at the outer surface is assumed to be zero, estimate:
(a) The initial rate of mass transfer of hydrogen through the metal wall
(b) The initial rate of pressure decrease inside the vessel
(c) The time in hours for the pressure to decrease to 50 psia, assuming the temperature stays constant at 80°F
If the barrel floats, what fraction of its volume will be above the water surface? If it sinks, what minimum tension would have to be exerted by a rope to haul the barrel up from the ocean floor?
Three air flows all at 200 kPa are connected to the same exit duct and mix without external heat transfer. Flow one has 1 kg/s at 400 K, flow two has 3 kg/s at 290 K and flow three has 2 kg/s at 700 K. Neglect kinetic energies and find the volume ..
Justify the circumstances in a business situation in which you would use GEOS, LEOS, and MEOS.
The financial statement and balance sheets for the past five years. There are also assumptions that can be used for the calculation of the items above
The mass of a moist sample of soil is 20.7 kg. The total volume of the sample before drying is 0.011m3
The area of an irregular boundary was measured using a planimeter. Calculate the area of the plan if the multiplying constant of the planimeter is 100 cm2.
modify the airline terminal problem by adding agent breaks. the 16 hours are divided into two 8-hour shifts. agent
What is the minimum guard time interval for preventing intersymbol interference? What is the maximum data rate (BPSK signaling) where minimum SINR is 40 (in linear scale)?
The most common sampling method is the convenience sample, therefore, many of the studies that you find for evidence use this sampling method. What are the implications for using a convenience sample on the way you interpret and use the findings?
Formulate a linear program to solve problem and define your decision variables and explain the constraints and solve the linear program.
Evaluate the basic methods employed when taking measurements and acceptable values - Demonstrate the interrelationship between the factors affecting thermal comfort and the waythey are combined to obtain the PMV and PPD
Search the Internet for pertinent information that supports the integration of unmanned aerial systems into the National Airspace Plan and the Air Traffic Control system.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd