Asked By: Blake Brooks Date: created: Apr 03 2021
What is the relationship between the enthalpy and entropy of a reaction that is never spontaneous
Answered By: Ryan Jenkins Date: created: Apr 05 2021
If a reaction is endothermic ( H positive) and the entropy change S is negative (less disorder), the free energy change is always positive and the reaction is never spontaneous.
| Enthalpy | Entropy | Free energy |
|---|---|---|
| endothermic, H > 0 | decreased disorder, S < 0 | reaction is never spontaneous, G > 0 |
Asked By: Jeremiah Martin Date: created: Jun 23 2021
What is the connection between entropy and biological reactions
Answered By: David Butler Date: created: Jun 26 2021
Entropy plays a big role in enzyme catalysis. Reactions in solution are usually slow because of the entropic cost in bringing the reactants or reactant and catalyst together. Two or more molecules associating to form one involves considerable loss of entropy.
Asked By: Luke Sanchez Date: created: Nov 01 2021
What does it mean when a reaction is spontaneous
Answered By: Bernard Collins Date: created: Nov 04 2021
In chemistry, a spontaneous processes is one that occurs without the addition of external energy. A spontaneous process may take place quickly or slowly, because spontaneity is not related to kinetics or reaction rate.
Asked By: Benjamin James Date: created: Apr 25 2021
What is the relationship between enthalpy and entropy in chemistry
Answered By: Gavin Flores Date: created: Apr 27 2021
These were some difference between Enthalpy and Entropy.
| Difference Between Enthalpy and Entropy | |
|---|---|
| Enthalpy | Entropy |
| Enthalpy is a kind of energy | Entropy is a property |
| It is the sum of internal energy and flows energy | It is the measurement of the randomness of molecules |
| It is denoted by symbol H | It is denoted by symbol S |
Asked By: Walter Scott Date: created: Apr 26 2022
What role does entropy play in chemical reactions
Answered By: Miguel Foster Date: created: Apr 29 2022
What part does entropy play in chemical reactions? An increase in entropy favors the spontaneous chemical reaction; a decrease favors the nonspontaneous reaction.
Asked By: Leonars Edwards Date: created: Jun 10 2022
What is the relationship between entropy and enthalpy
Answered By: Gilbert Harris Date: created: Jun 11 2022
It is the total heat contained in the system. This means if the energy is added, the enthalpy increases. If the energy is given off, then the enthalpy of the system decreases.
Difference Between Enthalpy And Entropy.
| Enthalpy | Entropy |
|---|---|
| Directly related to the internal energy of the system. | Entropy is the measurement of molecular randomness |
Asked By: Hugh Lee Date: created: Jun 09 2022
What is the connection between entropy and a spontaneous reaction
Answered By: Cyrus Walker Date: created: Jun 09 2022
The best indicator of spontaneity in a reaction is the change in Entropy (S or DS). The Second Law of Thermodynamics states that for a reaction to be spontaneous, there must be an increase in entropy. Entropy is often defined as a measure of the disorder of a system, this is not a very accurate definition.
Asked By: Jesse Garcia Date: created: Jan 10 2022
What is the relationship between free energy enthalpy and entropy
Answered By: Simon Cooper Date: created: Jan 11 2022
Gibbs free energy is the energy associated with a chemical reaction that can do useful work. It equals the enthalpy minus the product of the temperature and entropy of the system.
Asked By: Howard Ramirez Date: created: Aug 16 2021
Is entropy positive or negative for spontaneous
Answered By: Matthew Butler Date: created: Aug 17 2021
If a reaction is exothermic ( H is negative) and the entropy S is positive (more disorder), the free energy change is always negative and the reaction is always spontaneous.
| Enthalpy | Entropy | Free energy |
|---|---|---|
| endothermic, H > 0 | decreased disorder, S < 0 | reaction is never spontaneous, G > 0 |
Asked By: Alexander Reed Date: created: Apr 27 2021
Which type of reaction is always spontaneous
Answered By: Carl Gonzalez Date: created: Apr 28 2021
Which chemical reaction is always spontaneous? A reaction which is exothermic (ΔH negative) and results in an increase in the entropy of the system (ΔS positive) will always be spontaneous.
Asked By: Colin Stewart Date: created: Nov 03 2021
Is entropy and enthalpy the same
Answered By: Carter Carter Date: created: Nov 04 2021
Entropy is thus a measure of the random activity in a system, whereas enthalpy is a measure of the overall amount of energy in the system.
Asked By: Geoffrey Edwards Date: created: Mar 06 2022
How does entropy relate to spontaneity of reactions
Answered By: Geoffrey Martinez Date: created: Mar 09 2022
The best indicator of spontaneity in a reaction is the change in Entropy (S or DS). The Second Law of Thermodynamics states that for a reaction to be spontaneous, there must be an increase in entropy. Entropy is often defined as a measure of the disorder of a system, this is not a very accurate definition.
Asked By: Alan Williams Date: created: Nov 17 2021
Is enthalpy positive or negative for spontaneous
Answered By: Eric Long Date: created: Nov 17 2021
If a reaction is exothermic ( H is negative) and the entropy S is positive (more disorder), the free energy change is always negative and the reaction is always spontaneous.
| Enthalpy | Entropy | Free energy |
|---|---|---|
| exothermic, H < 0 | increased disorder, S > 0 | spontaneous, G < 0 |
Asked By: Lucas Wood Date: created: Dec 03 2021
How do you know if its spontaneous or Nonspontaneous
Answered By: Kevin Jackson Date: created: Dec 06 2021
17.5: Free Energy
in which is the enthalpy of the system, is the entropy of the system, and is the Kelvin temperature. If is negative, the reaction is spontaneous (it proceeds in the forward direction). If is positive, the reaction is nonspontaneous (it proceeds in the reverse direction).
Asked By: Xavier Torres Date: created: Oct 27 2021
Whats the difference between entropy and enthalpy
Answered By: Raymond Henderson Date: created: Oct 27 2021
These were some difference between Enthalpy and Entropy.
| Difference Between Enthalpy and Entropy | |
|---|---|
| Enthalpy is a kind of energy | Entropy is a property |
| It is the sum of internal energy and flows energy | It is the measurement of the randomness of molecules |
| It is denoted by symbol H | It is denoted by symbol S |
Asked By: Joshua Lewis Date: created: Jan 03 2022
What has to be negative for the reaction to be spontaneous
Answered By: Elijah Hill Date: created: Jan 06 2022
A reaction is spontaneous if the Gibb's Free Energy of the reaction is negative. If , the enthalpy, and , the entropy, are both negative, then the reaction will be spontaneous if and only if the magnitude of the enthalpy is greater than the magnitude of the entropy times the temperature.
Asked By: Cameron Ward Date: created: Nov 09 2021
Is positive entropy spontaneous
Answered By: Dominic Patterson Date: created: Nov 12 2021
If a reaction is exothermic ( H is negative) and the entropy S is positive (more disorder), the free energy change is always negative and the reaction is always spontaneous.
| Enthalpy | Entropy | Free energy |
|---|---|---|
| exothermic, H < 0 | increased disorder, S > 0 | spontaneous, G < 0 |
Asked By: Adam Henderson Date: created: Apr 18 2021
How do I know if a reaction is spontaneous
Answered By: Jonathan Gonzalez Date: created: Apr 18 2021
If ΔH is negative, and –TΔS positive, the reaction will be spontaneous at low temperatures (decreasing the magnitude of the entropy term). If ΔH is positive, and –TΔS negative, the reaction will be spontaneous at high temperatures (increasing the magnitude of the entropy term).
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