linear expansion occurs in_________?
Correct answer: A. solid
- A. solid
- B. liquid
- C. both
- D. none
Explanation
Linear expansion is the change in length caused by heating and is normally defined for solids, which have a definite shape and length. Liquids expand mainly in volume because they do not retain a fixed length or shape. The likely mistake is choosing both, by treating all thermal expansion as linear expansion.
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About Thermal Equilibrium and Heat
Thermal equilibrium means that bodies in contact have the same temperature and no net heat flows between them. The topic distinguishes heat from temperature, uses the zeroth law of thermodynamics, and covers heat transfer, specific heat capacity, thermal expansion and the conditions for reaching equilibrium.
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