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4 cards from this section. Quick, good the night before a test.
What does a negative Gibbs free energy (ΔG) indicate about a chemical reaction?
Think about what spontaneous means in a chemical context.
Define enthalpy (ΔH) in the context of thermodynamics.
Consider energy changes in a chemical reaction.
What does a negative change in Gibbs free energy indicate about a reaction?
Think back to the Gibbs free energy equation.
True or False: A reaction can be spontaneous even if it is endothermic.
Consider how entropy changes affect the energy dynamics of reactions.
A reaction has ΔH = -150 kJ and ΔS = +300 J/K. Determine if the reaction is spontaneous at 25°C.
Convert all units to kJ for consistency.
Analyze whether the given reaction will be spontaneous at high temperatures if ΔH = +80 kJ and ΔS = +500 J/K.
How do positive entropy changes influence spontaneity at varying temperatures?
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