648_Physics ProblemsTechnical Physics

648_Physics ProblemsTechnical Physics - 650 P22.45 Heat...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
650 Heat Engines, Entropy, and the Second Law of Thermodynamics P22.45 Sn R V V R f i = F H G I K J == ln ln . 25 7 6 J K There is no change in temperature . FIG. P22.45 P22.46 R V V R f i = F H G I K J = ln . ln 00440 2 2 bg a f S 008808314 2 0507 .. l n . a f JK FIG. P22.46 P22.47 For any infinitesimal step in a process on an ideal gas, dE dQ dW int =+ : dQ dE dW nC dT PdV nC dT nRTdV V VV =− = += + int and dQ T nC dT T nR dV V V If the whole process is reversible, S dQ T nC dT T nR dV V nC T T nR V V r i f V i f V f i f i + F H G I K J = F H G I K J + F H G I K J zz ln ln Also, from the ideal gas law, T T PV f i ff ii = S =⋅ L N M O Q P F H G I K J +⋅ F H G I K J = 100 3 2 8314 200 00400
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

Ask a homework question - tutors are online