1. 1 Based on the figure below, which of the following statements is true? a. The formation of AlCl3 began at 0.0oC. b. The final temperature of the reactants was -704oC. c. The final temperature of the products was -704oC. d. The formation of AlCl3 releases energy. Students type their answers here

2. 2 One calorie equals __________ joules. Students type their answers here

3. 3 When your body breaks down sugars and fats to form carbon dioxide and water, these exothermic reactions generate __________. Students type their answers here

4. 4 The _____ law of thermodynamics states that energy is neither created nor destroyed. Students type their answers here

5. 5 Which is a characteristic that increases a substance’s viscosity? a.larger particle size b. weaker intermolecular forces c. greater distance between particles d. increased temperature Students type their answers here

6. 6 The __________ law of thermodynamics states that spontaneous processes always proceed in such a way that the entropy of the universe increases. Students type their answers here

7. 7 The amount of energy required to raise the temperature of one gram of pure water by one degree Celsius is defined as ________________. Students type their answers here

8. 8 A baked potato contains 245 Calories. Calculate the energy in joules. Students type their answers here

9. 9 The SI unit of heat and energy is the __________. Students type their answers here

10. 10 How much heat is evolved from 54.0 g glucose (C6H12O6), according to the equation for calculating heat? Students type their answers here

11. 11 What is the term used to describe the energy required to increase the surface area of a liquid? Students type their answers here

12. 12 A car burns 500 joules of gasoline in its engine. Calculate the heat released in calories. Students type their answers here

13. 13 What is the specific heat of a metal that weighs 25 g and absorbs 320 J when the temperature is increased by 100.0°C? Students type their answers here

14. 14 The specific heat of water is 4.184 J/(g°C). How much heat is absorbed by 25 g of water when its temperature is increased from 40°C to 100°C? Students type their answers here

15. 15 A lunch combo contains 1520 nutritional Calories. Express this energy in joules. Students type their answers here

16. 16 The temperature of a sample of an unknown metal with a mass of 30.0 g changed from 60°C to 20°C with the release of 120 J of energy. What is the specific heat of the unknown metal?

17. 17 Calculate the enthalpy of a reaction, where the enthalpy of the reactant is 62 kcal and the enthalpy of the product is 22 kcal. Also, identify the type of the reaction with respect to its enthalpy. Students type their answers here

18. 18 Use standard enthalpies of formation to calculate the enthalpy change for the following reaction: CH 4 (g) + 2O 2 (g) → CO 2 (g) + H 2 O(g)