A scientist mixes together two white powders in a test tube inside of a calorimeter. As the reaction progresses, the temperature of the water in the calorimeter goes down. (multiple question)
a. Is this reaction endothermic or exothermic? How do you know ? (Describe where the energy is coming from and going to.)
b. If you completed the thermochemical equation to solve for the change in enthalpy for this reaction, would you expect a positive or negative value?
c. What does the change in enthalpy tell you about the "stability" or "energy" or enthalpy" of the reactants compared to the products ?
