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A 10 m3 oxygen tank is at 15 degree C and 800 kPa. The valve is opened and some oxygen is allowed to escape until the pressure in the tank drops to 600 kPa. The corresponding temperature is now 20 degree C. Calculate the mass in kg of oxygen that has been released from the tank. A team is designing a helium-filled balloon that will fly to an altitude of 7 km. As the balloon ascends, the upward force (buoyancy force) will need to exceed the total weight. Thus, the weight is critical. Estimate the weight (in newtons) of the helium inside the balloon. It is inflated at a site where the atmospheric pressure is .93 bar and the temperature is 23 degree C. When inflated prior to launch, the balloon is spherical (r=1.5 m) and the inflation pressure is the same as the local atmospheric pressure.
Determine the total heat transfer and the total work(kj). and show the T-V diagram.
explain how multiple depths can be produced by chemical machining also mention the relationship between width and depth
using the compressibility chart determine the volume in m3 occupied by 20 kg of hydrogen h2 at 11.55 atm and -364 degf.
2 kg of water at 10oc and atmospheric pressure are placed in a pressure cooker and heated until the water boils at
Refrigerant R-134a vapor in a piston-cylinder assembly undergoes a constant-pressure process from saturated vapor at 800 kPa to 50 ºC.
helium in an ideal diesel cycle is compressed from 4 l to 0.25 l and then it expands during the constant pressure heat
What are the forces on the pinion,gear,and shafts?
a mass of 2.4 kg of air at 150 kpa absolute and 12 degrees celsius is contained in gas tight frictionless piston
The main elevator A of the CN Tower in Toronto rises about 349 m and for most of its run has a constant speed of 22 km/h. Assume that both the acceleration and deceleration have a constant magnitude of g/3 and determine the time duration t of the ..
find the transfer function and resolution for a 10-turn 4.7kohm potentiometer with 3450 degrees of rotation and 0 to 5
what are the properties of petrol that it makes particularly suitable for the use as afuel in a motor vehicle.
a piston cylinder device contains 2.5 kg of carbon dioxide co2 initially at 100 kpa and 300 degrees celsius.the co2 is
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