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Gwar [14]
3 years ago
14

A turbine operates on superheated steam that enters at 80 bar absolute and 500˚C, and leaves the turbine at 7.5 bar absolute and

250˚C. The flow rate of the steam is 400 kg/min and the turbine operates adiabatically. The steam exiting the turbine goes to a heater, which is supplied with 2000
2kW of energy. The steam leaves the heater at 5 bar absolute. All of the pipes through which the

steam flows are 0.5 m (id) in diameter.

a. How much power is produced by the turbine? (4 marks)

b. What is the temperature of the steam leaving the heater? (4 marks)

c. What is the velocity (m/s) of the steam entering the turbine? (3 marks)

d. To what temperature can the steam at 80 bar be cooled before a liquid will appear?
Chemistry
1 answer:
yanalaym [24]3 years ago
6 0
The answer is

d. To what temperature can the steam at 80 bar be cooled before a liquid will appear?
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alexandr402 [8]

Answer:

7.5 L

Explanation:

Using Charles' law, which is V1/T1=V2/T2, we can plug in these numbers to find the answer.  The law states that volume is directly proportional to temperature. 3.0L/100K = x L / 250 K. Solve for x to get 7.5 L. Hope this helps.

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Murljashka [212]

Answer:

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As can be seen, in the overall reaction we have N_2O_4 in the reactants like in the second reaction and NO_2 in the products. The NO_2 is in the first reaction but as a reactant so we need to reverse that reaction:

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