Why is the entropy greater than that of a mole of helium
Use the Sackur- Tetrode equation to calculate the entropy of a mole of argon gas at room temperature and atmospheric pressure. Why is the entropy greater than that of a mole of helium under the same conditions?
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Calculate the final temperature when 1600g of water at 35oC in a 125g Cu calorimeter is mixed with 128g of steam originally at 143 oC and 450g of ice originally at -35 oC.
Air flows steadily through an insulated 5 cm constant diameter duct fitted with a fan. The air enters the suction side of the fan at 27°C, 100 kPa with a velocity of 10 m/s. Two hundred ninety watts of electrical energy are supplied to the mot
Let X = the time between two successive arrivals at the drive-up window of a local bank. If X has an exponential distribution with ? = 1, (which is identical to a standard gamma distribution with ? = 1), compute the following. (If necessary, round
Air contained in a piston-cylinder assembly is initially at 350 K, 150 kPa and a volume of 0.15 L. As the cylinder is heated to a final volume of 0.50 L, the pressure and volume vary according to the relationship PV=constant.
What error in the pressure drop would ensue if the assumption were made that the flow was laminar, abandoning the previous value of the friction factor.
A rod has a cross sectional area of 1 cm^2. The material has the following strength characteristics, beyond which the rod breaks:
If a 3000 pound vehicle loses traction at 60 mph find the coefficient of friction between the tires and the track. show the free body diagram and the radius of curvature is 450 ft.
A ductile material has a yield strength of 280 MPa. Determine the factors of safety corresponding to yielding for the state of plane stress given below using (a) Tresca Theory and (b) von Mises Theory.
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