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A mixture of ideal gases at a total pressure of 40.0 psia and 70.0°F contains 0.600 lbm of hydrogen (H2) and 4.80 lbm of oxygen (O2). Determine
a. The mole fraction of the hydrogen in the mixture.
b. The equivalent molecular mass of the mixture.
c. The total volume occupied by the mixture under the conditions stated.
Determine the maximum permissible depth dmax of the water if there is to be no tension in the concrete.
Space stations don't need to be round to have artificial gravity. The tethered spacecraft in the diagram to the right represents an alternative design. Put the astronauts in a passenger capsule. (Put the "spam in a can" as they say.) Tether it to a h..
Design an SI engine operating on an four-stroke air-standard cycle using stoichiometric gasoline is to have a maximum cylinder pressure of 11,000 kPa at WOT. Inlet pressure can be 100 kPa without supercharging, or it can be as high as 150 kPa with a ..
a 825 mw electric power plant 36.2 efficient uses a coal with the following composition c 74.8 wt h 5.2 wt o 7.3
Assuming the pulley is a uniform disk with a mass of 0.31 {rm kg}, find the speed of the block after it has fallen through a height of 0.50 {rm m}.
A stone is thrown straight downward with a speed of 20 m/s from the top of a tall building. If the stone strikesthe ground 3.0 s later, about how tall is the building? Assume air resistance is negligible.
If the district heating system should supply hot water at 900C, what is the lowest possible condenser pressure with water as the working sub-stance?
Starting from the energy equation and using the one-dimensional heat conduction derivation as an example
determine the pumpcompressor work input leave as kjkg required to isentropically compress water in part a as a liquid
The yearly average solar flux incident on a horizontal surface in the United States is about 180 W/m2. The average total energy demand in the United States is approximately 100 quads (100 × 1018 ) per year. Assuming an average efficiency of PV cells ..
What is the kinetic energy (in Btu) associated with a 300 gm hockey puck flying at 120 mph? Assuming an ideal gas, calculate the specific volume in the appropriate units for: Calculate the specific enthalpy change (in the appropriate units) for the f..
a heated vertical wall 1.0 ft high of an oven for baking food with the surface at 450 f is in contact with air at 100
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