COPY: Energy Types and Thermal Properties

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Questions and Answers

What are the different types of energy mentioned?

  • Mechanical
  • Chemical
  • Electrical
  • All of the above (correct)

Heat is not important to material behavior.

False (B)

What does heat capacity characterize?

  • Energy loss during cooling
  • Energy required to freeze a material
  • Energy required for a material to change phase
  • Energy required to increase temperature of a material (correct)

Which of the following types of energy are mentioned?

<p>All of the above (E)</p> Signup and view all the answers

Why is heat important to material behavior?

<p>It provides energy to do work.</p> Signup and view all the answers

What is heat capacity characterized as?

<p>Amount of energy required to increase temperature (A)</p> Signup and view all the answers

What happens to material properties with temperature changes?

<p>They change (C)</p> Signup and view all the answers

Flashcards

Latent Heat

The energy required for a material to change its phase (e.g., solid to liquid).

Absolute zero

The theoretical temperature at which all molecular motion ceases.

Average Vibrational Energy

The average kinetic energy of atoms vibrating in a solid.

Equilibrium distance

The distance between atoms in a solid where attractive and repulsive forces are balanced.

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Binding Energy

The minimum energy required to break or form a chemical bond.

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Heat Capacity (Cp)

The amount of energy required to raise the temperature of a material by one degree at constant pressure.

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Volumetric Heat Capacity

Heat capacity per unit volume.

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Cp subscript 'p'

Indicates that the heat capacity measurement is taken at constant pressure.

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Material properties

The characteristics of a material that describe how it will respond to different forces or conditions.

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Heat and Material Behavior

Heat provides the energy needed for materials to change (phase changes).

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Energy required (example)

Calculated from specific heat, mass and temperature difference.

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Repulsive forces

Forces acting between atoms that prevent them from getting too close.

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Attractive forces

Forces acting between atoms that pull them closer together.

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