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Question:
A stream of propane is throttled from 4.298 bar and 450 K to 0.22 bar. This process is irreversible due to frictional losses at the nozzle. What is the final temperature of propane (after throttling)?
The constant pressure heat capacity of propane is 92.7 J/mol/K. Clearly state any assumptions you need to make to solve this problem.
Hint: The initial T and final T are not equal.
Strontium fluoride, SrF2, has a Kspvalue in water of 2.45 × 10-9at room temperature. Calculate the solubility of SrF2in water. Express your answer in units of molarity.
A 1 m^3 isolated chamber with rigid walls is divided into two compartments of equal volume. The partition permits transfer of heat. One side contains a nonideal gas at 5 MPa and 300 K and the other side contains a perfect vacuum.
A sinusoidal signal, with amplitude of 3.25 volts, is applied to a uniform quantizer of the mid-tread type whose output takes on the values 0, ±1, ±2, ±3 volts. Sketch the waveform of the resulting quantizer output for one complete cycle of the in..
Propane is isothermally compressed from 0.01 bar, -51.4 °C to 17 bar. The process takes place reversibly in a closed system. Draw the PV graph of the process.
question 1a a receptionist who has been working in a large accountancy firm for eleven months has been complaining of
In the hippopotamus, digestion occurs as an autocatalytic reaction in the stomach followed by a catalytic reaction in the intestines. This system can be modeled as a series of CSTR-PFR.
Adsorption and Membrane Processes
Calculate the percentage of solvent in the dried fabric by weight. What is the concentration of solvent in the dryer exhaust (in g/m3) if the exhaust is at 80 degrees C and 1 atm? The solvent has a molecular weight of 86.
where and Qp are constants for a given gas-polymer pair. Consider the diffusion of hydrogen through a poly (dimethyl siloxane) (PDMSO) sheet 20 mm thick.
If the temperature of the contents is increased by 10 C degrees, the reading on the Kelvin thermometer should increase by 273 K
Non -zero heat flux component , since temperature changing in r - direction only , qr is present , the control volume , dr , as shown - Heat flux entering the control volume at r= r = qr = 4.π.r^2. qr|r
Which do you think would make the best resistor and why?
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