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Questions and Answers
What is heat?
What is heat?
- The measure of the average molecular motions in a system
- The total energy of molecular motion in a substance (correct)
- The amount of heat energy available for work in a system
- The degree of coldness or hotness of a body or environment
How is heat usually expressed when added to a substance?
How is heat usually expressed when added to a substance?
- As a decrease in the kinetic energies of the molecules of the substance
- As a decrease in the temperature of the substance
- As an increase in the kinetic energies of the molecules of the substance (correct)
- As a change in the state of the substance
What is temperature?
What is temperature?
- The degree of coldness or hotness of a body or environment
- The amount of heat energy available for work in a system
- The measure of the average molecular motions in a system (correct)
- The total energy of molecular motion in a substance
How is temperature related to the average kinetic energy of the molecules of a substance?
How is temperature related to the average kinetic energy of the molecules of a substance?
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What does specific heat capacity represent in the equation q = mcΔT?
What does specific heat capacity represent in the equation q = mcΔT?
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