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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?
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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 $μ = μ_o + RT ext{ln}(f/f_o)$?
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At what water activity value do most bacteria cease to grow?
At what water activity value do most bacteria cease to grow?
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What did W J Scott establish in 1953 regarding bacterial growth?
What did W J Scott establish in 1953 regarding bacterial growth?
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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?
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What is the primary factor in controlling spoilage in food products?
What is the primary factor in controlling spoilage in food products?
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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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