1. Tuesday April 14 Objective: Convert between celsius and kelvin. Checkpoint: – Define “temperature” in your own words. – What does it mean to be “hot” and “cold” when talking about temperature? Homework: temperature conversions (due Wed/Thurs)

2. Thought of the Week

3. What was one highlight or nightmare over your spring break?

4. Stoichiometry Exam Re-take up to a 16.5 (until next Friday) A20-22 B18-19 C15-17 D13-14 F0-12

6. What is temperature? Take 30 seconds to come up with a definition for temperature. Spend 1 minute discussing your definition with your partner.

7. Temperature = molecular motion (average kinetic energy of molecules)

8. Temperature scales Water boils at 212 and freezes at 32 Water boils at 100 and freezes at 0 Add 273 to degrees Celsius

9. Temperature scales Water freezes at 0 What temp in Kelvin? Water boils at 100 What temp in Kelvin? Add 273!

10. Temperature scales Subtract 273! It will be 301 K in San Jose today. What will the temperature be in Celsius?

11. Temperature conversions homework – http://tinyurl.com/mha5qm2 http://tinyurl.com/mha5qm2

12. Which has more volume?

14. What is volume? Take 30 seconds to come up with a definition for volume. Spend 1 minute discussing your definition with your partner.

15. What is keeping this balloon inflated?

16. What is pressure?

17. Units of pressure

19. 751 torr  mm Hg 751 torr x torr mm Hg = 760 751 mm Hg

20. 0.95 atm  kPa 0.95 atm x atm kPa = 1 101 96 kPa

21. 635 mm Hg  atm 635 mmHg x mm Hg atm = 760 1 0.836 atm

22. 150 kPa  atm 150 kPa x kPa atm = 101 1 1.5 atm

23. 1.2 atm  torr 1.2 atm x atm torr = 1 760 910 torr

24. Temperature conversions homework – http://tinyurl.com/mha5qm2 http://tinyurl.com/mha5qm2