Chemistry May 20 & 21, 2015

•OBJECTIVE: Students will review orally and in writing the main concepts of chapter 16 & 17 i.o.t. prepare for evaluation.

•W.O.D. Poach-to hunt or fish illegally

•WARM-UP

1. How does the quantity of heat absorbed to melt a solid compare to heat released when the solid freezes?

2. Describe the sign convention used to represent exothermic and endothermic enthaply changes.

Classwork

Review the following points:

1. Difference between heat and temperature; direction of heat flow

2. Difference between heat capacity and specific heat cap.

3. Difference between exo and endothermic; system and surroundings

4. units of heat

5. Thermal equations; 

6. Sign convention and phase changes

•Page 486 #19, 20

•Page 499 #45,47,48

•Page 535 #45,46, 47,54, 55, 56