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What is the physical significance of the "activity coefficient" in chemical engineering? (as it relates to...

What is the physical significance of the "activity coefficient" in chemical engineering?

(as it relates to components in a mixture...)

Engineering   Chemical-Engineering   
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Answer #1

The quantitative measures of the deviation from ideality is provided by the function called activity coefficient.It measures the extent to which the solution is deviating from ideality. It is denoted with symbol ( i ) and defined by

, where is fugacity in the standard state. For ideal solution i =1

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