Find whether expansion is internally reversible-irreversible
Air enters an insulated turbine operating at a steady state at 5 bar, 1000K and exits at 1 bar, 500K. Neglecting KE and PE changes and assuming ideal gas behavior, find whether the expansion is internally reversible, irreversible or impossible.
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If the freezing compartment is at temperature TL and the outside air is at temperature TH (both temperatures measured in kelvin), and assuming the efficiency of a Carnot refrigerator, what is the maximum amount of energy that can be extracted as h
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One end of a uniform 4.0 m long rod of weight is supported by a cable. The other end rests against a wall, where it is held by friction. The coefficient of static friction between the wall and the rod is .50.
If you know that each copper atom (radius = 128 pm) has a mass of 1.055 x 10^-22, how many atoms are there in this cube? What fraction of the cube is filled with atoms? Why is there "empty" space in the lattice?
Neglecting KE and PE changes and assuming ideal gas behavior, find whether the expansion is internally reversible, irreversible or impossible.
Calculate the pressure and composition of air 100 miles above the surface of the earth assuming that the atmosphere has a temperature of 0 celsius independent of altitude.
The same test indicates the presence of the disease 0.5% of the time when the disease is not present. One percent of the population actually has the disease. Calculate the probability that a person has the disease given that the test indicates the
A first-order system with a time constant equal to 10 ms is subjected to a sinusoidal forcing with an input amplitude equal to 8 V. Determine the magnitude ratio for the 100 rad/s forcing case.
A container has a mass of 78.91 grams when empty and 92.44 g when filled with water. The density of water is 1.000 g/cm3. Calculate the volume of the container.
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