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A three-phase, 50-hp, 440-V, 60-Hz, four-pole, wound-rotor induction motor operates at a slip of 0.03 at full load, with its slip rings short-circuited. The motor is capable of developing a maximum torque of two times the full-load torque at rated voltage and frequency. The rotor resistance per phase referred to the stator is 0.1 Ω. Neglect the stator resistance and rotational and stray-load losses. Find the rotor copper loss at full load and the speed at maximum torque. Compute the value of the per-phase rotor resistance (referred to the stator) that must be added in series to produce a starting torque equal to the maximum torque.
Propane is separated from propylene by distillation. The compounds have close boiling points and the relative volatility will be low.
Solid NH4NO3 (ammonium nitrate) decomposes on heating to 400°C, forming N2O gas and water vapor, H2O. (a)Write a balanced chemical equation
The percent of the original investment paid off in the first half of the service life using the sum-of-the-years-digits method.
Determine the Probability that an Ahmed energy state is occupied by an election it the slide is above the Fermi level by KT.
Individual Assignment - 25% of grade. This SQM plan may be for a religious organization, a city, A&M-Commerce, a manufacturing or engineering organization, the organization for which you work, etc. This is an organization-wide (i.e., company-wide,..
When dried to remove theremaining water (but not the water of hydration), the final dry Na2S2O2· 5H2O crystals must not contain more than 0.1 %impurity. To meetthis specification, the original solution, before cooling, is further diluted with wate..
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 packing height required for the desired separation.
List out the different biological process involving acids and bases with relevant equations and in adverse conditions how is the pH level maintained in biological systems?
primitive problem statementa 100 million tonsyear chemical product as shown in the table 1 is to be manufacture as per
Calculate the volume of lithium hydroxide at 0.12 M. required to neutralize 25 mL of sulphuric acid at 2.5 M. 3 marks 2. A sample of 2.5 g of solid NaOH will neutralize 125 mL of sulphuric acid. Calculate the molarity of the sulphuric acid. 3 mark..
At a pressure of 10 bar, determine the bubble and dew point of a mixture of hydrocarbons, composition, mol%: n-butane 21, n-pentane 48, n-hexane 31. The equilibrium K factors can be estimated using the De Priester charts in Dadyburjor (1978) or fo..
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