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1. Consider a tank that contains a saturated liquid- vapor mixture of water in equilibrium. Some vapor is now allowed to escape the tank at constant temperature and pressure. Will this disturb the phase equilibrium and cause some of the liquid to evaporate?
2. Consider a two-phase mixture of ammonia and water in equilibrium. Can this mixture exist in two phases at the same temperature but at a different pressure?
3. Using the solubility data of a solid in a specified liquid, explain how you would determine the mole fraction of the solid in the liquid at the interface at a specified temperature.
register windows each have 6 input registers and 6 output registers. how many local registers are in each register
A generator (which may be represented by an emf in series with an inductive reactance) is rated 500MVA, 22kV. Its Y-connected windings have a reactance of 1.1 p.u. Find the ohmic value of the reactance of the windings.
he storage capacitor in each cell has a capacitance of 50 fF and is fully charged to 5V. Find the worst-case leakage current (i.e. during the refresh cycle 50% of the stored charge is lost) that the dynamic node can tolerate.
A three-phase Y-connected synchronous generator is rated 120 MVA, 13.8 kV, 0.8-PF-lagging, and 60 Hz. Its synchronous reactance is 1.2 W per phase, and its armature resistance is 0.1 W per phase.
If all elements in part (a) are equally likely, find the probability that both customers use door I; then find the probability that both customers use the same door.
Determine whether the following discrete-time systems are causal or noncausal, have memory or are memoryless, are linear or nonlinear, are time invariant or time varying. In the following parts, x[n] is an arbitrary input and y[n] is the response
A cell-phone tower has a circular coverage area of radius 10 km. If a call is initiated from a random point in the coverage area, find the probability that the call comes from within 2 km of the tower.
A 240kW 500V 1750 r/min separately excited dc generator has an overall efiiciency of 94%. The shunt field resistance is 60 ohms and the rated current is 5A. The I^2 R loss in the armature is 0.023 pu.
Are these distances in the far-field region of the antenna? (Assume a circular reflector, with an aperture efficiency of 60%.)
a) Derive the expression for the transconductance characteristic, gm-vgs, of a JFET. b) Using the expression of the transfer characteristic and the transconductance characteristic, derive formula that expresses the relationship between gm & ip.
The receiver has a noise bandwidth of 1 MHz, an effective input-noise temperature of 800 K, and a gain of 120 dB from its antenna input to its IF output.
Find the flux density in the core. - Sketch the magnetic flux lines and indicate their direction. - Indicate the north and south poles of the magnet.
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