8 Questions
A dilatao volumtrica aparente o aumento real do volume de um lquido quando sua temperatura aumenta, considerando a expanso do container.
False
O coefficiente de expanso volumtrica aparente (_app) calculado como V_app / V_i T.
False
A expanso real o aumento observado no volume de um lquido devido mudana de temperatura.
False
A expanso volumtrica aparente importante em aplicaes cientficas, mas no em aplicaes de engenharia.
False
O material docontainer no afeta a expanso volumtrica aparente de um lquido.
False
A expanso volumtrica aparente afetada apenas pela temperatura inicial do lquido.
False
A expanso volumtrica aparente um conceito importante apenas em pequenas variaes de temperatura.
False
A expanso volumtrica real igual expanso volumtrica aparente.
False
Study Notes
Dilatação Volumétrica Aparente (Apparent Volumetric Expansion)
Definition:
- Apparent volumetric expansion is the increase in volume of a liquid when its temperature increases, without considering the expansion of the container.
Key Concepts:
- Real expansion: The actual increase in volume of the liquid due to temperature change.
- Apparent expansion: The observed increase in volume, which includes the expansion of the container.
Calculations:
- Apparent volumetric expansion coefficient (β_app): β_app = (ΔV_app / V_i) / ΔT where ΔV_app is the apparent volume change, V_i is the initial volume, and ΔT is the temperature change.
Importance:
- Apparent volumetric expansion is essential in engineering and scientific applications, such as:
- Designing containers and pipes for liquids
- Calculating heat transfer and energy requirements
- Understanding phenomena like thermal expansion and contraction
Factors Affecting Apparent Expansion:
- Thermal expansion of the container: The container's material and its thermal expansion coefficient affect the apparent volumetric expansion.
- Initial volume and temperature: The initial conditions of the liquid influence the apparent expansion.
- Temperature change: The magnitude of the temperature change impacts the apparent volumetric expansion.
Test your understanding of apparent volumetric expansion, including its definition, calculations, importance, and factors affecting it in engineering and scientific applications.
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