05 Notes - Liquids

05 Notes - Liquids - Substances with low boiling points...

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

View Full Document Right Arrow Icon
Pluchino – Regents Chemistry Phases of Matter – 05 Liquids Aim: How do the molecules of a substance behave in the liquid phase? Do Now: Describe the particles of a solid, a liquid and a gas. Liquids Definite volume, no definite shape Particles are packed close together, but move rather freely Usually associated with medium IFM In order for a substance to dissolve in another substance, they must have the same polarity. LIKES DISSOLVE LIKES! Vapor Pressure: The pressure of a vapor in equilibrium with its gas phase When the vapor pressure equals the atmospheric pressure, boiling will occur
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Substances with low boiling points have high vapor pressure Practice: Use table H to answer the questions. 1. Which liquid has the lowest boiling point at STP? 2. Which liquid has the greatest intermolecular forces? 3. Which liquid will boil at a pressure of 50 kPa and a temperature of 61°C? Conclusions: The properties of liquids are between those of a solid and a liquid “Likes dissolve likes” Substances boil when vapor pressure and atmospheric pressure are equal Use Table H...
View Full Document

This note was uploaded on 01/01/2012 for the course CHEM 101 taught by Professor Donahue during the Spring '11 term at Long Island U..

Ask a homework question - tutors are online