In a specified system, water activity is defined as the ratio of _____

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asked Jan 30, 2022 in Food Engineering by Amelia (93.8k points)

In a specified system, water activity is defined as the ratio of _____

(a) Fugacity of water vapor to fugacity of pure water at the specified system temperature and 1 atmospheric pressure

(b) Fugacity of pure water at the specified system temperature and 1 atmospheric pressure to fugacity of water vapor

(c) Fugacity of pure water at the specified system temperature and 1 atmospheric pressure

(d) Fugacity of water vapor

The question was asked in my homework.

This intriguing question comes from Principles of Semi-Moist Foods-1 topic in section Principles of Semi-Moist Foods, Principles of Food Preservation by Fermentation, Principles of Food Pickling and Curing and Principles of Food Storage Stability of Food Engineering

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