chapter%2011%20notes

chapter%2011%20notes - Chapter 11 States of Matter and...

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

View Full Document Right Arrow Icon
©2010 Donald L. Siegel, All Rights Reserved Chapter 11 Chapter 11 States of Matter and Intemolecular Forces
Background image of page 1

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

View Full DocumentRight Arrow Icon
©2010 Donald L. Siegel, All Rights Reserved Changes of State Changes of State W Vaporization - “Boiling” - changing from liquid to gaseous Always endothermic process Evaporation for cooling Reverse process called condensation W Enthalpy of vaporization amount of energy (at constant pressure) to vaporize a substance Usually expressed as a molar quantity
Background image of page 2
©2010 Donald L. Siegel, All Rights Reserved Example Example W A sample of 23.0g of CH 3 CH 2 OH required 22 kJ to vaporize. What is its enthalpy of vaporization? mol mol g g OH CH CH mols 499 . 0 / 07 . 46 0 . 23 2 3 = = mol kJ mol kJ H vap / 1 . 44 499 . 0 22 = = Δ
Background image of page 3

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

View Full DocumentRight Arrow Icon
©2010 Donald L. Siegel, All Rights Reserved Sublimation Sublimation W The process of changing directly from a solid to a gas is called sublimation. W The reverse process is called deposition
Background image of page 4
©2010 Donald L. Siegel, All Rights Reserved solid liquid gas Δ H fus Δ H vap Δ H freeze Δ H condensation Δ H sub Δ H deposition vap fus sub H H H Δ + Δ = Δ
Background image of page 5

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

View Full DocumentRight Arrow Icon
©2010 Donald L. Siegel, All Rights Reserved Heating curves Heating curves -350 -250 -150 -50 50 150 Heat (q) Temperature ms Δ T ms Δ T n Δ H
Background image of page 6
©2010 Donald L. Siegel, All Rights Reserved Example Example W How much heat is required to heat 100g of ice at -5 °C to steam at 110 °C? W
Background image of page 7

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

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/08/2011 for the course CHEM 161 taught by Professor Vacillian during the Fall '08 term at Rutgers.

Page1 / 22

chapter%2011%20notes - Chapter 11 States of Matter and...

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