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Question 2:
Hydrogen gas (cp = 14.513 kJ/kg.K, cv = 10.38911/kg.K, k = 1.397, R = 4.124 kJ/kg.K) is compressed in a piston cylinder device in a reversible and adiabatic manner. The initial conditions are 5.0 L, 17oC, 200 kPa and the final volume is 0.25 L. Determine:
a. The temperature after compression, in K.
b. The work required to compress the gas, in kJ.
Consider the material processing experiment of Problem 5.24, with atmospheric nitrogen used to implement cooling by convection. However, instead of using a prescribed value of the convection coefficient, compute the coefficient from an appropriate..
Consider a pressure vessel made by welding together two hemispheres of radius 20 ft and wall thickness 1.5 inches. If the allowed normal stress is 90 ksi, calculate the maximum allowed pressure within the spherical vessel.
The condition where (at most) one thread is allowed access to a resource that can not be shared. If a second thread wishes access to the resource while the first thread is using it, the second thread is made to wait until the first thread is finis..
a rectangular gate of 1m wide is hinged at its top edge shown as bellow. there is water at the right hand side of gate
what does the employee coaching process involve and what kinds of employees will benefit from the process? describe the
The 60W fan of a central heating system is to circulate air through the ducts. The analysis of the flow shows that the fan needs to raise the pressure of the air by 50Pa to maintain flow. The fan is located in a horizontal flow section whose diameter..
a car is traveling at a constant speed of 35 mph. what is the normal component of acceleration of the car at the top of
saturated liquid water is compressed from 100 kpa state 1 to 2.5 mpa state 2 in an adiabatic pump having 85 isentropic
a ship has an engine that rotates clockwise when viewed from the front. it has an effective moment of inertia of 250 kg
Plot the total mass in the tank, in kg, and the amount of heat transfer, in kJ, versus the final quality x ranging from 0.2 to 1.0
the cylinder and hub have a total mass of 30 kg and a radius of gyration of 0.5 m. assume no slippage. determine the
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