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Zeroth Law of Thermodynamics01:14

Zeroth Law of Thermodynamics

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Experimentally, if object A is in equilibrium with object B, and object B is in equilibrium with object C, then object A is in equilibrium with object C. That statement of transitivity is called the "zeroth law of thermodynamics." For example, a cold metal block and a hot metal block are both placed on a metal plate at room temperature. Eventually, the cold block and the plate will be in thermal equilibrium. In addition, the hot block and the plate will be in thermal equilibrium.
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Kinetic Molecular Theory: Molecular Velocities, Temperature, and Kinetic Energy03:07

Kinetic Molecular Theory: Molecular Velocities, Temperature, and Kinetic Energy

29.6K
The kinetic molecular theory qualitatively explains the behaviors described by the various gas laws. The postulates of this theory may be applied in a more quantitative fashion to derive these individual laws.
29.6K
Average Power01:13

Average Power

973
In practical electrical applications, the concept of time-varying instantaneous power is not frequently utilized. Instead, focus shifts to the more practical quantity known as average power. Average power is determined by integrating the instantaneous power over a specified time period and subsequently dividing it by that duration.
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Second Law of Thermodynamics02:49

Second Law of Thermodynamics

26.5K
In the quest to identify a property that may reliably predict the spontaneity of a process, a promising candidate has been identified: entropy. Processes that involve an increase in entropy of the system (ΔS > 0) are very often spontaneous; however, examples to the contrary are plentiful. By expanding consideration of entropy changes to include the surroundings, a significant conclusion regarding the relation between this property and spontaneity may be reached. In thermodynamic models, the...
26.5K
Second Law of Thermodynamics00:53

Second Law of Thermodynamics

67.0K
The Second Law of Thermodynamics states that entropy, or the amount of disorder in a system, increases each time energy is transferred or transformed. Each energy transfer results in a certain amount of energy that is lost—usually in the form of heat—that increases the disorder of the surroundings. This can also be demonstrated in a classic food web. Herbivores harvest chemical energy from plants and release heat and carbon dioxide into the environment. Carnivores harvest the...
67.0K
Path Between Thermodynamics States01:21

Path Between Thermodynamics States

3.9K
Consider the two thermodynamic processes involving an ideal gas that are represented by paths AC and ABC in Figure 1:
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相关实验视频

Updated: Jan 7, 2026

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
11:03

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

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热力学约束平均理论:为什么要麻烦?

Timothy M Weigand1, William G Gray1,2, Cass T Miller1

  • 1University of North Carolina, Chapel Hill.

ARC geophysical research
|December 30, 2025
PubMed
概括
此摘要是机器生成的。

这项研究简化了多孔介质流动的热力学约束平均化理论 (TCAT). 它展示了TCAT在获得准确的宏观模型方面的力量,使研究人员更容易理解复杂的系统.

关键词:
模型开发 模型开发的媒体 的媒体升级扩展是指升级规模.

更多相关视频

Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package
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Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package

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Characterization of Thermal Transport in One-dimensional Solid Materials
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Characterization of Thermal Transport in One-dimensional Solid Materials

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相关实验视频

Last Updated: Jan 7, 2026

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
11:03

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

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Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package
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Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package

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Characterization of Thermal Transport in One-dimensional Solid Materials
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Characterization of Thermal Transport in One-dimensional Solid Materials

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科学领域:

  • 多物理学的多重物理.
  • 连续力学 连续力学
  • 的媒体科学 的媒体科学

背景情况:

  • 宏观模型对于多孔介质研究至关重要,但往往缺乏严格的推导.
  • 现象学模型是常见的,但热力学约束平均理论 (TCAT) 提供了一个严格的方法.
  • TCAT的复杂性可能是它在多孔媒体研究中广泛采用的障碍.

研究的目的:

  • 澄清和展示TCAT用于导出宏观模型的实际应用.
  • 为了说明使用TCAT在多孔介质中单流体流量的宏观模型的推导.
  • 突出TCAT的优势和可访问性,为多孔媒体从业者.

主要方法:

  • 通过严格的尺度连接,从本质上精确的宏观模型的导出.
  • 应用不等式来导出对斯托克斯流程制度的近似宏观模型.
  • 在过渡流程制度中分析宏观模型.

主要成果:

  • 论证一个严格衍生出来的,本质上是准确的宏观尺度模型,用于多孔介质流.
  • 成功地应用TCAT原则来推导特定流量模式的近似模型.
  • 在多孔介质中识别TCAT在不同流动模式中的实用性.

结论:

  • 在多孔介质中,TCAT提供了一个可靠的框架来导出准确的宏观模型.
  • 这项研究简化了TCAT的应用,使其对研究人员和从业人员的好处更加明显.
  • 对于推进复杂的多孔介质系统的理解和建模,TCAT具有显著的潜力.