AP Chemistry – Exam Thoughts – Class 38

Question 1 – Calorimetry

• What is the experimental basis for calorimetry?
• How do I determine the change in enthalpy of a process?
• What are the key concepts associated with calorimetry?
• How do I calculate the ΔH of a process using a calorimeter?

Question 2 – Hess’s Law

• How does Hess’s Law help me determine the heat of a reaction?
• What is a formation reaction?
• How do I use heats of formation to determine the heat of a reaction?
• What is the relationship between heats of formation and Hess’s Law?

Question 3 – First Law of Thermodynamics

• What information does a P-V graph provide?
• What units does the graph use? How do they relate to energy?
• How do I determine the work of a process using this graph?
• What are the types of thermodynamic processes where one quantity is held constant?

Best of luck to everyone… I will see you Friday morning!