A power generator station is running by steam turbines to generate electricity. The frequency of the produced power is controlled using PI controller which works within the range 30- 70 Hz and it was set to standard frequency set point of 50 Hz. The proportional gain of the controller is 0.45% and the integral range is 0.20%. If the frequency fluctuates to 49.75 Hz, what is the overall controller output after 5.0 sec if the initial out pout is 20%?

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

You mix the pks of succinic acid are 4.21 and 5.64. how many gramsa graduate student at sdsu wants to measure the activity of a particular enzyme at ph 4.0. to buffer her reaction, she will use a buffer system based on one of the acids listed below, which acid is most appropriate for the experiment? of monosodium succinate (fw = 140 g/mol) and disodium succinate (fw = 162 g/mol) must be added to 1 l of water to produce a solution with a ph 5.28 and a total solute concentration of 100 mm? (assume the total volume remains 1 liter, answer in grams monosodium succinate, grams disodium succinate, respectively.) volumes of 0.05 m nah2po4 and 0.05 m na2hpo4 (pk's for phosphoric acid are 2.15, 6.82 and 12.38). which of the following best describes the resulting solution?

Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree