Quiz: Introduction to Thermodynamics

1. The study of heat energy that is involved in chemical and physical changes is
a. efficiency
b. thermodynamics
c. equilibrium
2. Chemical reactions that absorb heat energy are called __________ and have a __________ enthalpy.
a. exothermic, positive
b. exothermic, negative
c. endothermic, positive
3. Whether a chemical reaction or physical change takes place depends on both the enthalpy and the __________ of the process.
a. entropy
b. equilibrium
c. energy
4. Both the enthalpy and the entropy are combined to calculate the
a. reaction time
b. free energy
c. bound energy
5. The free energy term provides information regarding the __________ of a chemical reaction.
a. spontaneity
b. luminosity
c. reactivity
6. Thermodynamics give chemists an idea of which direction the minimum __________ of a given reaction lies.
a. reaction time
b. reaction volume
c. potential energy

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