Wk_6_Recitation2

Wk_6_Recitation2 - October 17 Recitation Topics: Reversible...

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

View Full Document Right Arrow Icon
October 17 Recitation Topics: Reversible and Irreversible Processes and Entropy Thermal energy reservoir Performance measure = desired output/required input ( η th and COP) Kelvin-Planck and Clausius Statements of the Second Law Internally vs externally irreversible Carnot Efficiency and Carnot Cycle Thermodynamic temperature scale Entropy and the Second Law Clausius Inequality S is a property dS= δ Q/T) int rev S = ( ∫δ Q/T) b + σ , for closed system Second Law σ ≥ 0 S universe 0 for the universe Recitation #1 For the following conditions and devices operating between two reservoirs of temperature T H and T C indicate whether the devices are operating in reversible, irreversible, or impossible cycles. Justify your answers by appropriate discussion.
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 03/15/2010 for the course ENGRD 221 taught by Professor Staff during the Fall '08 term at Cornell.

Ask a homework question - tutors are online