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Demonstrate the law of corresponding states by writing the van der waals equation in terms of the reduced variables. Calculate the compressibility factor for a van der waals gas at its critical point and compare the result with the values obtained for real gases at their points listed in Table 8.1. Calculate the value of (dU/dV)_T for a van der waals gas
A fire truck draws water from an open constant-level reservoir through a hose of 0.2 ft2 cross section. The water is discharged from the pump through another 0.2 ft2 hose to a surge tank pressurized to 120 psig with air at the top. The pump adds 970 ..
a 200 3 250-mm panel of mass 20 kg is supported by hinges along edge ab. cable cde is attached to the panel at c passes
a commercially available sump pump is capable of deliver-ing 2800 gallons per hour of water through a vertical lift of
2-kg of saturated liquid r-134a with an initial temperature of -10 c is contained in a well-insulated weighted post
a glass fiber reinforced random orientation polycarbonate polymer matrix composite has a density of 1.52 gcm3. the
the exhaust temperature of a carnot heat engine is 305degc. what is the intake temperature if the efficiency of the
consider a roof of a house of thickness l 20 cm thermal conductivity k 1 wm k and emittance of the external surface
1. what is the difference between measurement and inspection?2. list and explain at least 3 measuring equipments for
A 50 hp motor with an efficiency of 0.80 is to be replaced by a newer model motor with an efficiency of 0.90. The motor is expected to operate 3000 hours per year. The cost of electricity in our area is $0.06 per kWhr.
a piston-cylinder assembly with a free piston contains 0.45 m3 of propane vapor and 0.05 m3 of liquid propane as a
a homogeneous cylinder with weight g and radius r lay on a roughnbsphorizontal floor and adjoins to a rough vertical
Air at 90 kpa and -7 C enters an adiabatic diffuser steadily with a velocity of 180 m/s and leaves with a low velocity at a pressure of 100 kpa. The exit area of the diffuser is 5 times the inlet area. Determine (a) the exit temperature and (b) th..
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