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H2 gas is needed as a gas source for fuel cells. You want to generate H2 through a gas phase reaction of n-pentane 1 C5H12 2 with steam 1 H2O 2 . You may assume the only by-product formed is carbon monoxide (CO). Consider a molar feed ratio of 1 mol C5H12 to 10 mol H2O at a pressure of 0.5 bar. It is desirable to convert 98% of the feed n-pentane to hydrogen (i.e, for every 1 mol of C5H12 fed into the reactor, 0.02 mol C5H12 exits).
(a) Calculate the minimum temperature you can run the reactor to achieve 98% conversion of C5H12. You may assume Dhrxn is a constant.
(b) If you wanted to be more accurate in part A, what other thermodynamic property data would you need? Report the values of the property data you would need. (Do not do the calculation.)
(c) Explain why you would choose to operate this reactor at reduced pressure.
(d) Draw a quick schematic of a process you would use to separate H2 from the other species exiting the reactor to feed to the fuel cell.
In the nineteenth century, astronomers believed that the Sun was slowly shrinking and that the compression of its internal gas was the source of its heat. Given that the Sun's luminosity is approximately 3.8x10^ (33) gm, what is wrong with this idea?..
Three resistors and two batteries are connected as shown in the circuit diagram. List junction equation at point C. List two loop equations for loops of ABCF and ABCDEF.
A 5000 kg helicopter accelerates upward at 0.50 m/s2 while lifting a 2000 kg car. What is the lift force exerted by the air on the rotors? Evaluate the tension in the cable that connects the car to the helicopter?
A converging lens has a focal length of f = 29 cm. If an object is placed 40 cm from the lens, where will the image be formed.
asssume that in a particular vacuum tube the potential of the anode is 340 V higher than that of the cathode. If an electron leaves the surface of the cathode with zero initial speed, what is its speed when it strikes the anode.
A tiger leaps horizontally from a 6.5 m high rock with a speed of 4.1 m/s. How far from the base of the rock will she land
An open boxcar rolls at a constant speed of 6 ft/sec down a 1.5% slope. Then grain is poured in vertically downward at a rate of 500 pounds per second and at a vertical speed of 30 ft/sec when it impacts the car.
A bat strikes a 0.145-kg baseball. Just before impact, the ball is traveling horizontally to the right at 40.0m/s , Find the vertical component of the average force on the ball
q1. david is driving a steady 21.0 when he passes tina who is sitting in her car at rest. tina begins to accelerate at
What is the radius of the circular track?
A student (m = 63 kilogram) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.0170 second. Evaluate from what height did the student fall
An airplane can be made invisible to radar by coating the plane with a thin layer of an antireflective material. If radar waves have a wavelength of 3.0 cm.
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