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What is the name and symbol of the single thermodynamic quantity which determines whether or not a reaction is spontaneous?
Wiki User
∙ 11y ago
G ≡ H -TS (or in another useful form dG = dH -TdS)
where
H is enthalpy
T is absolute temperature
S is entropy
Wiki User
∙ 11y ago
The name of the single thermodynamic quantity is Gibbs free energy (G). The symbol for Gibbs free energy is ΔG (delta G). The sign of ΔG determines whether a reaction is spontaneous (negative ΔG) or non-spontaneous (positive ΔG).
Wiki User
∙ 11y agoFree Energy
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What of the following generally determines if a reaction will occur?
Thermodynamics
Is candle burning a spontaneous or non spontaneous reaction?
Candle burning is a spontaneous reaction. It is an exothermic reaction that occurs naturally and releases heat and light energy as the wax is being oxidized in the presence of oxygen from the air.
How do you determine whether a reaction is spontaneous or non spontaneous?
A reaction is spontaneous if the Gibbs free energy change (ΔG) is negative. This means that the reaction can proceed without external energy input. In contrast, a reaction is nonspontaneous if ΔG is positive, meaning external energy is needed for the reaction to occur.
Free energy is the minimum energy necessary for product to form?
Free energy is the energy that is available to do work in a system. It is calculated as the difference between the enthalpy and the product of the temperature and entropy of a reaction. In a chemical reaction, the free energy change (ΔG) determines whether the reaction is spontaneous (ΔG < 0) or non-spontaneous (ΔG > 0).
How does Gibbs free energy predict spontaneous?
If G < 0, the reaction is spontaneous.
What does the term spontaneous mean in chemical reactions?
This is a very fast reaction.
What is the symbol for free-energy change?
The symbol for free-energy change is ΔG (delta G). It represents the change in Gibbs free energy during a chemical reaction, which determines whether the reaction is spontaneous or non-spontaneous.
A chemical reaction has a positive H value and a positive S value Under what conditions is the reaction spontaneous?
The spontaneity of a reaction is determined by the sign of the Gibbs free energy (ΔG). If both enthalpy (H) and entropy (S) are positive, the reaction can be spontaneous at high temperatures where the TΔS term outweighs the positive ΔH term, resulting in a negative ΔG. This means the reaction will be spontaneous at elevated temperatures.
Gibbs quantity of maximum possible work?
Gibbs free energy represents the maximum reversible work that can be extracted from a system at constant temperature and pressure. It combines the system's enthalpy and entropy to predict whether a reaction is spontaneous. The change in Gibbs free energy (∆G) determines whether a reaction will proceed spontaneously or not.
Is candle burning a spontaneous or non spontaneous reaction?
Candle burning is a spontaneous reaction. It is an exothermic reaction that occurs naturally and releases heat and light energy as the wax is being oxidized in the presence of oxygen from the air.
A reaction that occurs without provocation from an outside system is?
A spontaneous reaction.
What of the following generally determines if a reaction will occur?
Thermodynamics
What does a positive cell voltage mean?
The reaction is spontaneous.
What generally determines if a reaction will occur?
Thermodynamics
What determine whether a reaction took place?
Whether a reaction took place is determined by the change in chemical composition, the formation of new substances, the release of energy or heat, and the color change or visible evidence of a chemical change. These factors indicate that a chemical reaction has occurred.
How do you determine whether a reaction is spontaneous or non spontaneous?
A reaction is spontaneous if the Gibbs free energy change (ΔG) is negative. This means that the reaction can proceed without external energy input. In contrast, a reaction is nonspontaneous if ΔG is positive, meaning external energy is needed for the reaction to occur.
Which best describes a galvanic cell a battery containing a non spontaneous reaction a battery containing an acid and a base a battery containing a spontaneous redox reaction a battery that requires?
spontaneous redox reaction
