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The marketing group is planning to launch a new product and has forecasted that the mean price for the product will be 5 $/kg, normally distributed with standard deviation 40 ¢/kg. The cost of the stoichiometric amount of feed required to make the product is 3 $/kg. Propose preliminary targets for cost of production and yields.
Assume that an ordinary mercury-in-glass thermometer follows first order dynamics with atime constant of 10s. It is at a steady state temperature of 0°C. At time t = 0, the ther mometeris suddenly immersed in a constant temperature bath at 100°C.
The uniform air gap is of length 1 mm, while the armature diameter is 0.5 m, and the axial length of the machine is 1.5 m. The field winding carries a current of 1 A (dc) and the rotor is driven at 3600 r/min.
Taking the stator resistance to be 2.0 Ω, friction and wind age loss to be 7 W, and assuming Xl1 = X'l2, determine the parameters of the double revolving-field equivalent circuit.
Acetylene is formed as a by-product in the manufacture of ethylene. It is removed by selective hydrogenation using noble metal catalysts (see, for example, US 7,453,017). A particular catalyst achieves 90% acetylene saturation with 50% hydrogen se..
Calculate the theoretical stages needed to separate a 10 mole% ethanol liquid saturated feed into a 80 mole% distillate and a 0.1 mole% bottoms at 1 atmosphere pressure.
Consider the same silicon-aluminum metal-semiconductor junction. The cross-sectional area of the junction 1s 10 µm2. Assume that Be is 30 A K -2 cm-2 and the ideahty factor n is 1. Calculate the reverse saturation current and plot..
upon responding to a 200 a.m. domestic transportation mishap your hazmat team determines that a liquefied compressed
Discuss how the phase equilibria of mixtures are represented using diagrams similar to the pressure-temperature and pressure-specific volume diagrams for one- component systems. Use the example of a mixture of ethane and heptane to illustrate your..
Derive the Nernst potential for R+++ at equilibrium.
Explain why the fugacity coefficients of H2 S in the liquid and in the vapor are equal at 5.76 bar but different at 36.99 bar.
The solubility of sodium bicarbonate in water is 11.1 g NaHCO3/l0O g H2O at 30°C and 16.4 g NaHCO3/100 g H20 at 60°C. If a saturated solution of NaHCO3 at 60°C is cooled and comes to equilibrium at 30°C, what percentage of the dissolved salt cryst..
A 10-turn square coil of side 200 mm is mounted on a cylinder 200 mm in diameter. If the cylinder rotates at 1800 r/min in a uniform 1.2-T field, determine the maximum value of the voltage induced in the coil.
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