Chemistry, 29.07.2019 03:00 fashionblogger28
Why does the screw have a very low efficiency? because with a low effort it can lift large loads. because it take a huge effort to turn in order to lift large loads. because the input work is much greater than the output work.
Answers: 2
Chemistry, 22.06.2019 17:10
Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.
Answers: 2
Chemistry, 22.06.2019 21:30
Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.
Answers: 1
Why does the screw have a very low efficiency? because with a low effort it can lift large loads. b...
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