CH 101 notes 10-8

CH 101 notes 10-8 - States of matter: Fixed shape Fixed...

Info iconThis preview shows pages 1–3. 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
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: States of matter: Fixed shape Fixed position Variable shape Some molecular movement Variable shape & volume Fast molecular movement The state of matter has a dramatic effect on the outcome The stuff of chapter 8. Section 7.4 Section 7.5 Force between like molecules Result in: viscosity and surface tension Cohesive Force Adhesive Forces Force between unlike molecules Result in: meniscus Section 7.5 Viscosity resistance of liquids to flow Low viscosity vinegar tiny molecules (H 2 O and HC 2 H 3 O 2 ) Its a tangling issue, just like hair High viscosity corn syrup large molecules Section 7.5 Surface tension energy required to increase the surface area of a liquid Its a glue issue. High surface tension the liquid molecules are attracted to each other example: water beads Low surface tension where the liquid molecules dont have much glue example: acetone runs everywhere Section 7.5 concave convex strong adhesive forces between H 2 O and glass (Si-O-H) weak adhesive forces between Hg and glass (Si-O-H) Lo E r r 1 r 2 Interaction Energy at 25 C Section 7.6 r 3 + Na- Cl Solid r, PE is small H O H + + - Liquid r, PE is medium N N Gas r, PE is large PE = potential energy Solid Liquid Changes of State Gas Lo E Hi E Section 7.6 Potential Energy E out f r e e z e E in m e l t E out c o n d e n s e E in e v...
View Full Document

Page1 / 6

CH 101 notes 10-8 - States of matter: Fixed shape Fixed...

This preview shows document pages 1 - 3. Sign up to view the full document.

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