<p>The drawing below shows an adiabatic process. &#160;&#160; The problem states

Question

<p>The drawing below shows an adiabatic process. &#160;&#160; The problem states that &#916;Ua = 0, because the energy of an ideal gas is only dependent on temperature.&#160; So... dWrev(a)=-dqrev(a)</p>
<p>&#160; <img src="https://s3.amazonaws.com/answer-board-image/3c515b8e-1890-47fe-a686-289000fad922.jpg" alt="image from custom entry tool" /></p>
<p>(Pressure versus Volume).</p>
<p>I understand path A, and path D+A, but I'm confused by path B+C</p>
<p>Path C is easy to understand: Cv(T)= dU/dt &#8756;<img src="https://s3.amazonaws.com/answer-board-image/cramster-equation-20111029232932634555277729893025170.gif" alt="" align="absmiddle" /> = Qrev(C).&#160; No pressure volume work is done so this is the total energy change for path C.</p>
<p>I'm confused by path B.&#160; The book says path B is adiabatic so q = 0</p>
<p>If you look at the graph you can clearly see that volume changes, but according to my book:</p>
<p>The reversible work done in path B is equal to...</p>
<p><img src="https://s3.amazonaws.com/answer-board-image/cramster-equation-20111029225086345552540852286536647.gif" alt="" width="108" height="32" align="absmiddle" /></p>
<p>This equation makes no sense to me.&#160; How can you take the integral of a constant volume heat capacity when the volume changes?</p>
<p>I don't understand the math. Please clarify how this is possible</p>

Explanation / Answer

question is not clear....

Related Questions

Navigate

• Browse (All)
• Browse #
• Subjects

---

---

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