1.The amount of heat energy gained or lost by a substance depends on each of the following EXCEPT a. the change in temperature of the substance
b. the specific heat capacity of the substance
c. the mass of the substance
d. the difference in heat energy of the products and the reactants

2.The amount of heat needed to raise the temperature of 1.0 g of a substance by 1ºC is called
a. heat
b. specificity
c. enthalpy
d. specific heat

3.A negative sign for the change in enthalpy for a reaction indicates that the reaction is
a. Entropic
b. Explosive
c. Exothermic
d. Endothermic

4.For there to a measurable amount of heat, there must be a change in in the system.
a. Enthalpy
b. Temperature
c. Mass
d. Rate

5.The addition of a catalyst generally speeds up the rate of a chemical reaction. This happens because the catalyst
a. Lowers the activation energy
b. Lowers the starting potential energy
c. Raises the activation energy
d. Raises the enthalpy of the reaction

6.Which of the following best defines “temperature”?
a. a measure of the amount of heat energy moving from something warm to something cool
b. a measure of the average amount kinetic energy of particles in a substance
c. a measure of the total amount of kinetic energy of particles in a system
d. a measure of the total chemical potential energy in the bonds of the molecules of a substance

7.A student has a coffee-cup calorimeter. He places 100 mL of 21ºC water in the cup. He then obtains a 30g piece of hot copper metal (100ºC), drops it into the water and seals the calorimeter. He then monitors the temperature of the system. Which of the following statements is the most likelyresult of this activity?
a. the final temperature of the water and metal will be around 60ºC.
b. the final temperature of the water and metal will be closer to that of the initial metal temperature.
c. the final temperature of the water and metal will be closer to that of the initial water temperature.
d. it is impossible to estimate the final temperature from this information.