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Air, an ideal gas, is isentropic ally compressed from V1 = .36 ft^3, P1 = 14.5 psia, T1 = 70 F, to V2 = .03 ft^3 (compression ratio = 12). Find T2, P2 and W (work in Btu) for this process: (a) assuming constant specific heat ideal gas with cp = .24 Btu/lbm-R, cv = .171 Btu/lbm-R and k = 1.4 (room temperature values), and (b) assuming variable specific ideal gas and using the Air Tables
A control system consists of an electrical power supply, a standby battery supply which is activated by a sensor and switch if the main supply fails, a hydraulic power pack,
Water is flowing through a pipe with a circular cross section at a rate of 5.2 gallons per minute (US GPM). The pipe has an outer diameter of 2.2 inches and an inner diameter
In a chemical process the amount of a certain type of impurity in the output is difficult to control is thus a random variable. Speculation is that the population mean amount
How much clay must be added to 10 kg of polyethylene to produce a low-cost composite having a modulus of elasticity greater than 120,000 psi and a tensile strength greater t
The top pulleys of a Weston differential pulley block have diameters of 210 and 190 mm. Determine the effort required to raise a load of 150 kg if the efficiency of the syst
Steam enters a counter flow heat exchanger operating at stead state at 0.07 MPa with a specific enthalpy of 2431.6 kJ/kg and exits at the same pressure as saturated liquid. Th
During the isothermal heat rejection process of a Carnot cycle, the working fluid experiences an entropy change of 0.7 Btu/R. If the temperature of the heat sink is 95°F, de
Saturated steam at 230 degrees F, 20.78 psia and 19.386 ft cubed per pound of mass enters a compressor with an internal energy of 108.26 Btu/lb of mass and is compressed to 80
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