A stream consisting of three components. A, B, and C enters a separator. The com

Question

A stream consisting of three components. A, B, and C enters a separator. The composition of the stream is 20% A, 30 % B and 50 % C. The separator produces three streams of differing compositions, and of differing flowrates. The composition of one of the streams is 56 % A, 28 % B, and 16 % C. The composition of another of the three streams is 58% A, 10 % B, and 32 % C. Which of the compositions listed below is a possible composition of the third product stream? 22 % A, 25 % B, and 53 % C. 30 % A, 45 % B, and 25 % C. 2 % A, 35 % B, and 63 % C. 28 % A, 12 % B, and 60 % C. 10 % A, 25 % B, and 65 % C. Which one of the operations listed below involves the greatest change in energy of a kilogram of water? Assume all operations are conducted at atmospheric pressure. Heating 1 kg of water from 10.0 degree C to 90.0 degree C. Heating 1 kg of water from 20.0 degree C to 100.0 degree C. Heating 1 kg of steam from 200.0 degree C to 280.0 degree C. Heating 1 kg of steam from 100.0 degree C to 180.0 degree C. Turning 1 kg of water at 100.0 degree C into 1 kg of steam at 100.0 degree C.

Explanation / Answer

18. Given the two composition profiles of streams, the third stream would have a composition profile of,

22 % A, 25 % B and 53 % C

19. Greatest change in energy of a kg of water would be observed for the process,

Turning 1 kg of water at 100 oC to 1 kg of steam at 100 oC.

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