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单词 Van der Waals equation
释义

Van der Waals equation

中文百科

范德华方程序

水分子之间的范氏引力(中国大陆的中学教科书称为“范德华力”)
一个双原子分子的排斥体积(图中黑色的部分)
分别用理想气体方程和范德华方程模拟的二氧化碳气体70°C时的p-V等温线
用范德华方程模拟的二氧化碳气体不同温度下压缩过程的p-V等温线,在临界温度以下时能看见明显的液化过程

范德华方程van der Waals equation)(一译范德瓦耳斯方程),简称范氏方程,是荷兰物理学家范德华于1873年提出的一种实际气体状态方程。范氏方程是对理想气体状态方程的一种改进,特点在于将被理想气体模型所忽略的的气体分子自身大小和分子之间的相互作用力考虑进来,以便更好地描述气体的宏观物理性质。

英语百科

Van der Waals equation 范德华方程式

van der Waals isotherms. The model correctly predicts a mostly incompressible liquid phase, but the 
oscillations in the phase transition zone do not fit experimental data.
van der Waals isotherms and oscillations, temperatures, T, below and above TC. Shown in this PV diagram are a series of 5 isotherms for temperatures ranging from below (blue) to above (red) TC, where the upward arise and downward dip in the isotherm predicted by the van der Waals equation (the
van der Waals isotherm oscillation and Maxwell's equal areas.[13] Maxwell's rule eliminates the oscillating behavior of the isotherm in the phase transition zone by defining it as a certain isobar in that zone. The above isotherm is for a reduced temperature of  TR=0.9. The Maxwell correction is at a vapor pressure of pV≈0.64700 between the reduced volume of the pure liquid VL≈0.60340 and the pure gas VG≈2.3488 at the vapor pressure.
  • Equation of state
  • Gas laws
  • Ideal gas
  • Inversion temperature
  • Iteration
  • Maxwell construction
  • Real gas
  • Theorem of corresponding states
  • van der Waals constants (data page)
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更新时间:2025/6/22 1:05:52