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A turbine operates by the impact of a high velocity jet of steam against the turbine blades. The steam leaves the turbine at a lower velovity. For the turbine depicted, steam from a high pressure nozzle enters the air and strikes the blades of a turbine at an average velocity of v(i) and leaves the turbine at an average velocity of v(0)
a) in terms of the given parameters and any others that may be neededm how much work can be generated by the turbine? (friction can be neglected)?
b) if v(i) = 317m/s and v(0) = 126 m/s, what is the amount of work (in joules per mass of fluid) represented by the answer to (a)?
Calculate the pH at the points in the titration of 20.00 mL of 0.318 M NH3 of 0.470 M HCl have been added. For NH3, K_b=1.8*10^-5.
Determine the pH of a 0.62 M NH4NO3 solution at 25°C. The Kb for NH3 is 1.76 × 10-5.
Draw the molecule by placing atoms on the grid and connecting them with bonds. Do not identify the charge on each of these species. Include all lone pairs of electrons.
Which of the following strong electrolytic solutions will have the highest electrical conductivity?
What is the activation energy in kJ/mol? What is the rate constant at 100 degrees C?
what steps are needed to prepare phenylacetylene from C6H5CH2CH2Br I chose the following reagents 1. H2SO4, 2. Br2, 3. NaNH2/excess (were correct) and simply require to draw the intermediate
What is atmospheric pressure in atmospheres in Denver for heat of fusion=40.6kj/mol at 95 degee celsius
Enzyme X is a highly pigmented protein that imparts the characteristic color to certain blue-green algae. It also facilitates a reaction necessary to the survival of this species
In the haloform reaction, once the first alpha-hydrogen atom is replaced by a halogen atom, each successive hydrogen is more easily substituted
Calculate the number of grams of Mg(OH)2 that should dissolve in 100 mL of water.
The half-life of Plutonium-239 is 24,000 years. If 10 gms are present now, how long will it take until only 10% of the original sample remains? Round your answer to the nearest 10,000th.
121 cal of heat are added to 50.0 g of water initially at 15.0 (degrees celsius). What is the final temperature of the water.
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