1. Lesson 2
LT: I can explain phase change calculations in terms of heat absorbed and heat released.

2. You have 3 minutes to answer the following questions.
Food For Thought
You have 3 minutes to answer the following questions.

3. 3 Minutes
What mass of water can be heated from 25.0°C to 50.0°C by the addition of 2825 J?

4. 2 Minutes
What mass of water can be heated from 25.0°C to 50.0°C by the addition of 2825 J?

5. 1 Minute
What mass of water can be heated from 25.0°C to 50.0°C by the addition of 2825 J?

7. 10 Seconds

8. 9 Seconds

9. 8 Seconds

10. 7 Seconds

11. 6 Seconds

12. 5 Seconds

13. 4 Seconds

14. 3 Seconds

15. 2 Seconds

16. 1 Second

17. Let’s get Started Feeding Your Mind!

18. LESSON 2 Food For Thought
You have 3 minutes to answer the following question.

19. 3 Minutes
What heat equation would be used for each section of the heating curve?

20. 2 Minutes
What heat equation would be used for each section of the heating curve?

21. 1 Minute
What heat equation would be used for each section of the heating curve?

22. 10 Seconds

23. 9 Seconds

24. 8 Seconds

25. 7 Seconds

26. 6 Seconds

27. 5 Seconds

28. 4 Seconds

29. 3 Seconds

30. 2 Seconds

31. 1 Second

32. Let’s get Started Feeding Your Mind!

33. LESSON 2 Food For Thought
You have 3 minutes to answer the following question.

34. 3 Minutes
What is the change in enthalpy when 9.75 g of aluminum reacts with excess ammonium nitrate (NH4NO3)
according to the equation:
2Al + 3NH4NO3  3N2+ 6 H2O + Al2O3
ΔH =-2030kJ

35. 2 Minutes
What is the change in enthalpy when 9.75 g of aluminum reacts with excess ammonium nitrate (NH4NO3)
according to the equation:
2Al + 3NH4NO3  3N2+ 6 H2O + Al2O3
ΔH =-2030kJ

36. 1 Minute
What is the change in enthalpy when 9.75 g of aluminum reacts with excess ammonium nitrate (NH4NO3)
according to the equation:
2Al + 3NH4NO3  3N2+ 6 H2O + Al2O3
ΔH =-2030kJ

37. 10 Seconds

38. 9 Seconds

39. 8 Seconds

40. 7 Seconds

41. 6 Seconds

42. 5 Seconds

43. 4 Seconds

44. 3 Seconds

45. 2 Seconds

46. 1 Second

47. Let’s get Started Feeding Your Mind!