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Questions and Answers
What does the symbol $μ$ represent in the equation $μ = μ_o + RT ext{ln}(f/f_o)$?
What does the symbol $μ$ represent in the equation $μ = μ_o + RT ext{ln}(f/f_o)$?
- Pressure
- Temperature
- Chemical potential (correct)
- Molar mass
What is the equation for the activity of water in a system?
What is the equation for the activity of water in a system?
- $a_w = f/f_o$ (correct)
- $a_w = f - f_o$
- $a_w = f_o/f$
- $a_w = f_o - f$
What does the symbol $a$ represent in the context of thermodynamic activity?
What does the symbol $a$ represent in the context of thermodynamic activity?
- Molar mass
- Activity coefficient (correct)
- Vapor pressure
- Fugacity
What is the practical approximation for the activity of water in most food conditions?
What is the practical approximation for the activity of water in most food conditions?
What does the symbol $R$ represent in the equation $μ = μ_o + RT ext{ln}(f/f_o)$?
What does the symbol $R$ represent in the equation $μ = μ_o + RT ext{ln}(f/f_o)$?
At what water activity value do most bacteria cease to grow?
At what water activity value do most bacteria cease to grow?
What did W J Scott establish in 1953 regarding bacterial growth?
What did W J Scott establish in 1953 regarding bacterial growth?
What did researchers find about the correlation between bacterial growth potential and moisture content?
What did researchers find about the correlation between bacterial growth potential and moisture content?
What is the primary factor in controlling spoilage in food products?
What is the primary factor in controlling spoilage in food products?
At what water activity value do most molds cease to grow?
At what water activity value do most molds cease to grow?
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