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A piston-cylinder device contains products of combustion from the combustion of a hydrocarbon fuel with air. The combustion process results in a mixture that has the composition on a volume basis as follows: 4.89 percent carbon dioxide, 6.50 percent water vapor, 12.20 percent oxygen, and 76.41 percent nitrogen. This mixture is initially at 1800 K and 1 MPa and expands in an adiabatic, reversible process to 200 kPa. Determine the work done on the piston by the gas, in kJ/kg of mixture. Treat the water vapor as an ideal gas.
twenty pounds of a gas mixture is contained in a tank with volume 30 cubic feet at 30 psia and 70 f. the gas mixture
1. a discrete 120 v ac output module is to be used to control a 230 v dc solenoid valve. draw a diagram showing how
a steam power plant is to be built to provide 10 mw of electricity. the turbine to be used has an efficiency of 45 and
consider a large rain water tank for a remote farmhouse. the farmhouse occupants are constantly concerned with the
A voltage signal is produced by a transducer. The signal contains its strongest frequency component at 50 Hz (amplitude = 5.0 V), plus a weaker component at the second harmonic (100 Hz) with amplitude 2.0 V. In addition, there is noise at 60 Hz with..
an ideal gas is heated from 50 c to 80 c a at constant volume and b at constant pressure. for which case do you think
the support at a is a ball-and-socket joint that is incapable of supporting any moments. the tension in the cable
a gravimetric analysis of atmospheric air results in approximately 23.15 oxygen and 76.85 nitrogen. what is the partial
1. compare liquids and gases with regard to theirbull shapebull volume occupiedbull densitybull viscositybull
the masses of the bar and the disk are 5 kg and 10 kg respectively. the coefficient of kinetic frictionnbspbetween the
a pump accepts liquid water at 60 degf and 14 psia and compresses it isothermally to a pressure of 100 psia. the pump
a long cylinder pressure vessel with closed ends has an internal pressure of 3 mpa. calculate the hoop stress sigma
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