Chapter_6b-B

Chapter_6b-B - Chapter 6b (6.4 & 6.6) Energy,...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

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

Unformatted text preview: Chapter 6b (6.4 & 6.6) Energy, Enthalpy and Hesss Law E and H v p q E p - = w q E + = v p q E v - = If the only kind of work is expansion: V p q E - = V p - H E q E v = v p E q p + = q p = H Enthalpy (H) Heat content of a body of matter H = E + pV (definition) H = H final H initial = E + (pV) H = q p H = Characteristics of H When H is negative ( H<0): The process is When H is positive ( H>0): The process is H is a When a process is reversed, H will have the same magnitude but H is H is Changes of State Changes of State Involve: Particles moving more rapidly and farther apart E required to overcome attractive force fusion of heat on vaporizati of heat H H fusion fusion = heat energy required to melt a solid H of a Phase Change: Water at 25 C H 2 O Gas Liquid H 2 O H = H vap = H for Chemical Reactions A + B C reactants: initial state products: final state init final H H H- = kJ 241.8- H O H O H 2 2 2 1 2 = + (g) (g) (g) kJ...
View Full Document

This note was uploaded on 02/21/2011 for the course CHEM 1230 taught by Professor Anderson during the Spring '08 term at Toledo.

Page1 / 20

Chapter_6b-B - Chapter 6b (6.4 & 6.6) Energy,...

This preview shows document pages 1 - 8. Sign up to view the full document.

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