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The external-characteristics data of two shunt generators in parallel are given as follows:
Calculate the load current and terminal voltage of each machine.
(a) When the generators supply a load resistance of 6 Ω.
(b) When the generators supply a battery of emf 300 V and resistance of 1.5 Ω.
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 Soave-Redlich-Kwong equation is a commonly used cubic equation of state, second in popularity only to the Peng-Robinson Equation of state. In this problem, just derive the two equations (7.66) given in the problem.
Apply linear programming to this problem. A firm wants to determine how many units of each of two products (products X and Y) they should produce in order to make the most money. The profit from making a unit of product X is $190 and the profit fr..
Calculate the drum temperature, calculate the vapor and bottoms compositions and completely size the tower: Diameter, Height, weight.
question 1suppose the system shown below. initially the gas is at 200 kpa and occupies a volume of 0.1 m3. the spring
upon responding to a 200 a.m. domestic transportation mishap your hazmat team determines that a liquefied compressed
The formation of ice during colder weather helps temper the seasonal transition to winter. This is mainly because
Mass transfer coefficient from a free water surface to an adjacent moving air stream has been found to be 0.015 kg/m2-s. Estimate the rate of evaporation from a surface of 1 m2 at a temperature of 28 oc into an air..
In the chlorination of ethylene to produce dichloromethane (DCE), the conversion of ethylene is reported as 99.0%. If 94 mol of DCE are produced per 100 moll of ethylene reacted, calculate the selectivity and the overall yield based on ethylene. T..
Calculate the required value of Ta1 if the film temperature falls to 34°C, and the value if it rises to 36°C.
The rate constant of a chemical reaction decreases by decreasing the 1. pressure 2. concentration of reactants
what is the conversion conversion if both the reactors are operated in series when feed note =20 litre/min , feed concentration = 1 g mol /liter , rate constant
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