van der Waals equation

noun

Definition of van der Waals equation

: an equation that defines the physical state of a homogeneous gas, is a modification of the ideal-gas equation, and more nearly describes the properties of actual gases: (p + (a/v2)) (vb)=RT where p is the pressure, v the specific volume, R the gas constant, T the absolute temperature, and a and b are constants depending respectively on the cohesion between the molecules and the volume occupied by the molecules — compare gas law sense c

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History and Etymology for van der Waals equation

after Johannes D. van der Waals †1923 Dutch physicist

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Cite this Entry

“Van der Waals equation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/van%20der%20Waals%20equation. Accessed 25 Jan. 2022.

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