2. TRIVIA Click for Question

3. T/F: Energy is the capacity to do work. true Click for: Answer and next Question

4. True/False: Chemical Kinetic energy is stored in the atoms of the molecules. false Click for: Answer and next Question

5. True/False: The change in enthalpy of a system during a reaction must be a constant pressure. true Click for: Answer and next Question

6. A ________________ equation includes the physical states of the reactants and products and specifies the change in enthalpy. thermochemical Click for: Answer and next Question

7. The _______ is the amount of energy required to evaporate one mole of a liquid. Molar enthalpy of vaporization Click for: Answer and next Question

8. Using ________ law, the enthalpy change for a reaction can be calculated by adding two or more thermochemical equations and their enthalpy changes. Hess’s Click for: Answer and next Question

9. Standard enthalpies of formation are based upon assigning a standard enthalpy of ____ kJ to all elements in their standard states. Zero (0) Click for: Answer and next Question

10. True/False: Exothermic reactions tend to be spontaneous. true Click for: Answer and next Question

11. _________is a measure of disorder or randomness of a system. Entropy Click for: Answer and next Question

12. _____energy is the energy AVAILABLE to do work. Gibb’s Free Click for: Answer and next Question

13. If the reaction’s free energy is negative the reaction is said to be….. spontaneous Click for: Answer and next Question

14. The heat of reaction for exothermic reactions is ….. negative Click for: Answer and next Question

15. The formula for finding q is… Q=cmT Click for: Answer and next Question

16. The formula for calculating Gibbs free energy is? Gsys = Hsys - TS Click for: Answer and next Question

17. When calculating Gibbs free energy, the temperature must be in…. Kelvin Click for: Answer and next Question

18. How does one covert from Celsius to Kelvin? Add 273 to the C temperature Click for: Answer and next Question

19. When calculating the Heat of reaction what is the equation? Hproducts - Hreactants Click for: Answer and next Question

20. In an endothermic reaction, which has more energy, the products or reactants? products Click for: Answer and next Question

21. Which of the following has the greatest entropy: NH 3 (g) and NH 3 (l) NH 3 (g) Click for: Answer and next Question

22. Which of the following has the greatest entropy? CO 2 (s) and CO 2 (g) CO 2 (g) Click for: Answer and next Question

23. What does dissolving a gas in an aqueous solution do for entropy? Increases entropy Click for: Answer and next Question

24. When the number of gaseous products increases in a chemical reaction, the entropy…. increases Click for: Answer and next Question

25. What letter is used to represent heat? Q Click for: Answer and next Question

26. What letter is used to represent specific heat? c Click for: Answer and next Question

27. What is the letter that represents free energy of a system? G Click for: Answer and next Question

28. What letter is used to represent entropy? S Click for: Answer and next Question

29. When solving q=cmT problems, what other letter would designate what units the temperature need to be in? C (if the unit is J/gC, then the temperature needs to be in C Click for: Answer and next Question

30. If Mg(s) + HCl(aq)  H 2 (g) + MgCl 2 (aq) releases energy, how would the test tube feel on your hands? warm Click for: Answer and next Question

31. Because freezing is an exothermic process, the energy is __________. released Click for: Answer and next Question

32. For the following reaction, calculate the Hrxn. 2NaHCO 3 (s)  Na 2 CO 3 (s) + CO 2 (g) + H 2 O(g) [-1130.70+-393.595 + -241.818] -(2x+950.8)= -3424.077 kJ Click for: Answer and next Question