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Questions and Answers
What does a negative change in free energy (∆G) indicate about a process?
In the equation ∆G = ∆H – T∆S, what does the term T represent?
Which of the following statements is true regarding free energy (∆G) in biological systems?
What does the change in entropy (∆S) represent in the equation for free energy?
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What must occur to the total energy (∆H) and temperature (T) for a process to be spontaneous if ∆S is negative?
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Study Notes
Free Energy Overview
- Free energy (∆G) represents the energy available to perform work in a uniform environment, such as in living cells.
- The formula for calculating free energy change is ∆G = ∆H – T∆S.
Key Definitions
- ∆G: Change in free energy, indicating the capacity to do work.
- ∆H: Change in total energy or enthalpy of the system.
- ∆S: Change in entropy, reflecting disorder or randomness in the system.
- T: Temperature measured in Kelvin.
Spontaneity of Processes
- Only spontaneous processes are characterized by a negative value of ∆G.
- Spontaneous processes are essential as they can be harnessed to perform work within biological systems.
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Description
Test your understanding of free energy concepts, including key definitions and the spontaneity of processes. This quiz covers the essentials of free energy change, its relevance in biological systems, and the associated equations. Discover how energy dynamics influence work performance in living cells.
