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Reversible adiabatic processes are isentropic. Are isentropic processes necessarily reversible and adiabatic? If so, explain why; if not, give an example illustrating the point.
Comment on whether this motor is an induction motor or a synchronous motor.
Is carbon dating more appropriate to measure the age of materials that are a few years old, or a few thousand years old or a few million years old?
The viscosity of the liquor is 0.7 mN m-2 s. The cutoff crystal size required is 5 μm. Select a suitable type of centrifuge to use for this duty.
All other conditions are the same as those specified in Example 5 of this chapter, except that Bi is not given. 8. Present a detailed derivation of Eq. (481 in this chapter, using, as a starting point, any of the other equations that are given.
Problem 1: For the circuit given in Figure 1 the power factor is 0.72 lagging and the power dissipated is 375 W.
Estimate the annual operating cost of providing refrigeration to a condenser with duty 1.2 MW operating at -5 ºC. The refrigeration cycle rejects heat to cooling water that is available at 40 ºC, and has an efficiency of 80% of the Carnot cycle ef..
Two compartments, with equal volumes of 0:0572 cm3, are separated by a thin membrane. If all of the solute is initially dumped into one compartment, then find the transfer rate if the time constant equals 27 103 s.
In the manufacture of vinyl chloride (VC) by the pyrolysis of dichloromethane (DCE), the reactor conversion is limited to 55% to reduce carbon formation, which fouls the reactor tubes. Calculate the quantity of DCE fed to the reactor to produce 50..
What features would be needed in the proposed oscilloscope?
Consider a diatomic gas, N2, at 298 K. This gas is compressed reversibly and adiabatically from 15 dm3 to 5.0 dm3. Assume that the heat capacity of this gas is CV=5R/2, and that it behaves ideally. Calculate the final temperature, T2, of the gas.
Assuming adiabatic operation, what is the ratio of chilled air to warm air that the device produces? Assume that air is an ideal gas for which Cp = (7/2)R.
Circle all answers that are correct; there can be 0 to 5 correct answers. Which of the statements below is true?
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