40 likes | 185 Views
January 16, 2014. Test Date Changed: Now January 22 (Wednesday) Homework: Answer question #’s 1-4, 6-14,17,18 from page 69-70 in textbook on pg. 61 in notebook Do now: Update TOC: page 60 Chapter 2 Review and Page 61: Review Questions Homework Take out Phase Change work Sheet
E N D
January 16, 2014 Test Date Changed: Now January 22 (Wednesday) Homework: Answer question #’s 1-4, 6-14,17,18 from page 69-70 in textbook on pg. 61 in notebook Do now: Update TOC: page 60 Chapter 2 Review and Page 61: Review Questions Homework • Take out Phase Change work Sheet • Take out Magic Squares worksheet
On Magic Square Sheet in Box M, N, and O Write This question in box M: • Why does volume increase when the temperature of a gas increases? In Box N: • Why does volume decrease when temperature decreases? In Box O: • Divide the box in half: Draw two pictures that describes your answers one from M and one from N
Answers to Phase Change graph 1) No 2) Yes 3) Yes 4) Heat Energy 5) The attractive forces are weakening between the particles, particles are breaking apart and are able to move past each other and then lose all attraction and move freely past each other 6)Temperature increases until phase change begins and then stays the same until all the substance has changed and the next phase change begins: Thermal energy increases the temperature until a phase change (change of state) begins then the energy is used to add more energy to the molecules which causes them to be able to vibrate so fast that they break their attractive forces, until the next phase change begins.