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Which of the following best describes what temperature measures in a substance?
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1. Intro to General Chemistry
Temperature
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Which of the following best describes what temperature measures?
A
The total amount of heat contained in a substance
B
The mass of the particles in a substance
C
The average kinetic energy of the particles in a substance
D
The rate at which a chemical reaction occurs
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Understand that temperature is a physical quantity related to the motion of particles in a substance.
Recall that heat is the total energy transferred due to temperature difference, not the temperature itself.
Recognize that the mass of particles does not define temperature; rather, temperature depends on how fast particles move on average.
Know that the rate of a chemical reaction is influenced by temperature but is not what temperature measures.
Conclude that temperature measures the average kinetic energy of the particles in a substance, reflecting how energetically they move.
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