Question #8b78e
1 Answer
Each part is very important!
Explanation:
A simple calorimeter is a set of apparatus arranged so that the (thermal) energy change during a reaction can be measured.
a. Styrofoam cups are used to INSULATE the reaction vessel and thus it's contents from surrounding temperatures. If heat energy is allowed to escape from the reaction vessel then the temperatures being recorded aren't a measure of thermal energy change.
b. Thermometer allows the starting temperature and final temperature (thermal energy change) to be measured. Stirrer provides kinetic energy to reactants to help start a reaction.
c. The chemicals in solution are the reactants for the reaction that you are measuring the energy change for.
d. Water is a solution that enables the reactants to dissolve and thus react in aqueous (dissolved in water) form.
