An engineer devises a scheme for extracting some power from waste process steam. The engineer claims that the steam enters the device at 340 F and quality 75%, and exits at 220 F and 65% quality.

Does this device violate the first law of thermodynamics?

This device does not violate the first law of thermodynamics

Explanation:

First law of thermodynamics states that  any change in the internal energy (∆E) of a system is given by the sum of the heat (q) that flows across its boundaries and the work (w) done on the system by the surroundings:

i.e (∆E)= q + w

The operation of the device is coherent with the first law of thermodynamics because the work extracted from the steam causes a drop in the internal energy and quality of the steam. This is reflected by the drop in temperature which is from 340 F to 220 F.

This drop in temperature and quality shows that work is extracted from the total energy of the system, proving that the device obeys the first law of thermodynamics.

answer:

d. attempt to find the owner, then leave your information if you cannot find them.

explanation:

d. represents both (b) and (c).

more logical as well.

b and c are to complicated.

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answer:

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explanation: