Tuesday, December 8, 2015

Chemistry Unit 3 Day 5

Learning Objective: Students will learn about thermodynamics in chemical reactions by conducting a lab and will analyze and interpret their data in writing using technical vocabulary (exothermic, endothermic, spontaneous, enthalpy) and science ideas (energy transfer).


Questions:

  1. What determines if reactions will be endothermic or exothermic? (brain)
  2. What does the H of a reaction tell us? (book)
  3. Which statement describes the potential energy diagram of an exothermic reaction?

Answer Choices for number 3:
 
  • A. The potential energy of the products is equal to the potential energy of the reactants.
  • B. The potential energy of the products is greater than the potential energy of the reactants.
  • C. The potential energy of the reactants is greater than the potential energy of the products.
  • D. The activation energy of the reactants is greater than the activation energy of the products.