activity coefficient


Definition of activity coefficient

: the ratio of chemical activity to actual concentration : an arbitrary quantity that in the case of solutions is a measure of the deviation of a more or less concentrated solution from an ideal solution

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First Known Use of activity coefficient

1911, in the meaning defined above

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The first known use of activity coefficient was in 1911

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Cite this Entry

“Activity coefficient.” Dictionary, Merriam-Webster, Accessed 24 Oct. 2020.

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