Which of the following statements is true? a. In an isobaric system, no flow wor

Question

Which of the following statements is true? a. In an isobaric system, no flow work can be added or removed, because flow work is equal to PAvand in an is bare system Pi. O b. In a closed system, no flow work is added or removed, because no material is entering or leaving the system. c. In applying the equation wrc =-/ PdV, the P always stands for the pressure inside the system. O d. In applying the equation wec =-/ PdV, the Palways stands for the pressure outside the system. O e. None of the above are true.

Explanation / Answer

Option "e" is correct.

a) In isobaric system P=constant not P=0.

b) For a closed system, work can be added or removed from the system.

c) & d) sign convention will be depend upon the selection of system, surroundings or control volume.

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