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Steam flows steadily through an uninsulated turbine. The inlet conditions of the steam are 6 MPa, 400°C, and 80 m/s, and the exit conditions are 40 kPa, 92 percent quality, and 50 m/s. The mass flow rate of the steam is 20 kg/s. If the heat lost to the surroundings amounts to 10% of the power output, determine (A) the change in kinetic energy, (B) the power output, and (C) the turbine inlet area.
In dry atmospheric air, the four most abundant components are N2, X = 0.808; O2, X = 0.1915; Ar, X = 9.34x10-5; and CO2, X = 4.066x10-4. Calculate the partial pressure of Ar, in torr, under standard atmospheric conditions.
the atomic radius of a helium atom is 31 pm. what is the diameter of one helium atom in centimeters?
In the titration of a solution of a weak monoprotic acid with a .1325M solution of of NaOH, the pH was halfway to the equivalence point was 4.42.
How does electron configuration work. If I have [Ar]3d^5 as an example how do I know what it actually equals
what are possible sources of error that might lead to an erroneous determination of the concentration of the acetic
what is the composition of vapor of a pentane-hexane solution that has a vapor pressure of 373 torr at 25 degree
If 21.0 mL of silver nitrate solution reacts with excess potassium chloride solution to yield 0.882 g of precipitate, what is the molarity of silver ion in the original solution
Ethane C2H6 burns in oxygen a.) what are the products of reaction b.)write the balanced equation for the reaction
a sample of pure caco3 weighing 0.2500g is dissolved in hydrochloric acid and the solution diluted to 250.0ml in a
How many moles of each of the following were in the original sample? What is the molecular formula?
The double head arrow represents an equilibrium arrow, not a resonance arrow. A reaction mixture, initially contains 11 mol of A and 0 mol of B in a fixed volume of 1 L.
a 325 ml sample of solution contains 25.3 g of CaCl2. calculate molar concentration of Cl- in this solution
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