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Question: Air flows through a convergent-divergent nozzle from a large reservoir in which the pressure and temperature are maintained at 700 kPa and 60°C, respectively. The rate of air flow through the nozzle is 1 kg/s. On the exit plane of the nozzle the stagnation pressure is 550 kPa and the static pressure is 500 kPa. A shock wave occurs in the nozzle and the flow can be assumed to be isentropic everywhere except through the shock wave. Find the nozzle throat area, the Mach numbers before and after the shock, the nozzle areas at the point where the shock occurs and on the exit plane, and the air density on the exit plane of the nozzle.
Calculate the aqueous solution with the highest freezing point. These are all solutions of nonvolatile solutes and you should assume ideal Van't Hoff factors where applicable
Question- Automobiles and trucks pollute the air with NO. At 2000 degrees C, Kc for the reaction is 4.10 x 10^ -4, and delta H = 180.6 kj. What is the value of Kc at 67 degrees C
Question- Assuming its concentration in air is 2.0 ppb, calculate the molar solubility of SO2 in raindrops whose pH is fixed (by the presence of strong acids) to be 4.0, 5.0, and 6.0.
Problem- Consider two cells, the first with Al and Ag electrodes, and the second with Zn and Ni electrodes, each in appropriate 1.00 M solutions of their ions. A) If connected as voltaic cells in series, which two metals are plated, and what is the..
what is the balanced equation for the saponification reaction of glyceryl tripalmitate, also known as tripalmitin
If you shine a light beam through this sample, minimal light passes through ( assume no light passes through). What if your sample allows 50% of light to pass through? How many bacteria are in your sample.
the water couplingdioxygen evolving reactionpromoted by photosynthetic organisms involves the proton-coupled four
How many values of amplitude are there in one wavelength of a wave, and how is the amplitude related to the energy of a wave?
Which of the following happens when MnO4- reacts to form MnO2? a. The oxidation state of oxygen increases b.MnO4- is reduced. c. MnO2 acts as an oxidizing agent. d. The oxidation state of manganese increases
The corrosion of iron can be thought of as an electrochemical cell reaction. Calculate the voltage difference between two points of corroding iron differing only in their partial pressure of oxygen: 0.20atm of oxygen at one point and 0.0010atm of ..
Say that in today's experiment you are given a 250 mL flask to which you add 10.00 mL of 0.402 M Fe3+ solution, 10.00 mL of 0.15 M HNO3 and 20.00 mL of distilled water. What is the molar concentration of the Fe3+ in the final mixture
Write equations for the dissociation of the following in water. Include physical states for all species.CaCl2
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