CHEM 1211 Module 7 Thermochemistry Name: __________________

Module Seven: Part B Discussion Questions 4 points

For the exam, your instructor will select two of the following questions for you to write the answers:

1. What is the standard state of an element or compound substance?

2. Why does water have a high specific heat capacity? What does this mean?

3. Write four different mathematical expressions for the 1st Law of Thermodynamics. How are they related?

4. Where does the energy come from in an endothermic process? And where does it go?

5. Define standard molar enthalpy of formation ∆ Hº_f . Why is the standard enthalpy of formation of a pure element in its most stable form defined as zero?

6. Define a spontaneous reaction. How can you tell whether a reaction is spontaneous?