can you tell me why the answer is b? The general equation for the entropy in a c

Question

can you tell me why the answer is b?

The general equation for the entropy in a control volume according to the Second Law involves the following terms: accumulation of entropy in the control volume net entropy transfer between control volume and surroundings with heat transfer of entropy in by mass flow transfer of entropy out by mass flow entropy generated in the surroundings Using the standard sign conventions, which of the relations below is the correct arrangement of these terms that satisfies the 2snd Law of Thermodynamics? I=- II + III + IV + v I = II + III - IV + V I = II + III - IV - V I = II - III - IV - V

Explanation / Answer

(b) is correct

total entropy = S( in form of heat ) + S( in form of mass flow ) + S ( gen)

1 = 2 + ( 3-4) +5

1 = 2+3-4+5

+ sign is for entropy entering

and - sign is for entropy leaving

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.