Thermodynamics Chemistry Printable Answers

Thermodynamics is the study of what?

• The transfer of energy
• The creation of energy
• The speed of reactions 
• The affect of heat on the speed of a reaction 

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Temperature is a measure of the...

• total energy in a substance
• total kinetic energy in a substance
• average potential energy in a substance
• average kinetic energy of molecules in a substance

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What is entropy?

• A measurement of chaos
• The heat content of a system 

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Total entropy increases over time.

• True
• False

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Heat is measured in 

• joules
• grams
• degrees celcius

The Law of _______________ states that energy cannot be created nor destroyed only transferred 

• Specific Heat
• Conservation of Energy
• Exothermic Reaction
• Potential Energy

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Energy in exothermic reactions are

• released
• absorbed

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Heat transfer [blank] occurs from hot to cold. 

• always
• never
• sometimes
• rarely

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Which phase of matter has the greatest motion and least orderly arrangement?

• solid
• liquid
• gas

Where does the energy released in a chemical reaction come from?

• It is created.
• It comes from the kinetic energy of the moving particles.
• It comes from the potential energy stored in chemical bonds.

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