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04.03.2020 •
Chemistry
It is desired to carry out the gaseous reaction A → B in an existing tubular reactor consisting of 50 parallel tubes 40 ft long with a 0.75-in. inside diameter. Bench-scale experiments have given the reaction rate constant for this first-order reaction as 0.00152 s 1 at 200 F and 0.0740 s 1 at 300 F. At what temperature should the reactor be operated to give a conversion of A of 80% with a feed rate of 500 lb m/h of pure A and an operating pressure of 100 psig? A has a molecular weight of 73. Departures from perfect gas behavior may be neglected, and the reverse reaction is insignificant at
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The answer is The spanish conquered the great Aztec and Inca empires by bringing diseases to kill most of them off quickly, scaring them with the horses, and using their more advanced superior weapons to kill them. What do you think helped the Europeans the most in the defeat of the Inca and Aztec?
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