che320_class4edited

che320_class4edited - Entropy change of an ideal gas 1 mol...

Info iconThis preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon
4 Thermo review problems today . entropy increase entropy change of an idea gas or water virial equation announce . Review session Mon 31aug2009 4 pm. No class Mon 07sep2009 (Labor Day). t xam (8 am on Fri 18sep2009, 111 Wartik). 1 1 st exam (8 am on Fri 18sep2009, 111 Wartik). Midterm exam Mon 05oct2009 from 8:15-11:15. assignments . HW 01 due before class Wed 02sep2009. reading: Ch 02
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Example. Entropy increase A 40 kg steel casting (C p = 0.5 kJ/kg-K) at 450 C is quenched in 150 kg of oil (C p = 2.5 kJ/kg-K) at 25 C. If the total system is adiabatic, what is the change in entropy of a) the steel casting, b) the oil, and c) the sum of the two? 2
Background image of page 2
blank 3
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Opinion Box Take out a sheet of paper. Keep your paper anonymous, without your name. Let me know … What made sense? hat was confusing? 4 What was confusing? Questions? Technical? Center? Personal? Fun? Suggestions? Comments?
Background image of page 4
Example.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 12
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 14
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Entropy change of an ideal gas 1 mol of O 2 gas goes from T = 320 K and p = 1.6 bar to T = 410 K and p = 3.4 bar. What is the change in entropy and internal energy? How would this change for a real gas? 5 blank 6 blank 7 blank 8 blank 9 blank 10 Story CENTER: Character C haracter E xcellence Ow n ership nacity 11 T enacity E ntrepreneurship R elationship Example. Gas pressure by virial equation We have 3.0 mol of iso-propanol vapor at 200 C in 4,000 cm 3 of volume. Experimental values for the virial coefficients of the vapor at 200 C are B = -388 cm 3 /mol and C = -26,000 cm 6 /mol 2 . Find the pressure for a) an ideal gas, b) a real gas with the virial equation Z = 1 + B/V + C/V 2 . 12 blank 13 Summary Calculus helps us with thermo! 14 C haracter E xcellence Ow n ership T enacity E ntrepreneurship R elationship Character....
View Full Document

This note was uploaded on 08/22/2010 for the course CH E 320 taught by Professor Matsoukas,themist during the Fall '09 term at Penn State.

Page1 / 14

che320_class4edited - Entropy change of an ideal gas 1 mol...

This preview shows document pages 1 - 14. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online