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The change in entropy equals zero when a process is reversible, meaning that the system and surroundings return to their original state without any net change in entropy.

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When is the change in entropy zero?

The change in entropy is zero when a process is reversible, meaning that the system and surroundings return to their original state without any net change in entropy.


When will be entropy negative?

Entropy is a measure of disorder in a system and is always equal to or greater than zero according to the second law of thermodynamics. Entropy cannot be negative in a closed system.


When a system is at equilibrium what is delta S?

At equilibrium, the change in entropy (ΔS) of the system is zero. This means that the system is in a state of maximum entropy where there is no further tendency for change in the system.


Describe the conditions necessary for a sample to have zero entropy?

The only way to have zero entropy is to have a temperature of absolute zero.


Are all reversible processes is entropic?

Yes. Isentropic means "constant entropy." For all reversible processes, the change in entropy for the system and its environment is zero.


How does the volume change in an isentropic process?

The entropy of an ideal gas during an isothermal process may change because normally the entropy is a net zero. The change of on isothermal process can produce positive energy.


When entropy is less than zero the probability of occurrence of such a process in an isolated system is?

I don't think entropy can get less than zero


How does the entropy change in the reaction 2c3h6g 9o2g 6co2g 6h2og?

The entropy change in a reaction can be calculated by comparing the entropy of the products to the entropy of the reactants. Without specific entropy values provided, it is difficult to determine the exact change. However, in general, the entropy change is positive in reactions where the products have higher entropy than the reactants, indicating an increase in disorder.


Is Entrophy change in a system that undergoes a spontaneous process positive negative or zero?

Negative entropy is a process or chemical reaction proceeds spontaneously in the forward direction.Positive entropy is a process proceeds spontaneously in reverse.


What is the 3 law of thermodynamics?

There is no accepted or established "fourth law of thermodynamics". There are, however, numerous authors who have postulated versions of fourth laws to explain certain aberrant phenomena. The following link gives over fifteen different versions of postulated "fourth" laws of thermodynamics: http://www.humanthermodynamics.com/4th-Law-Variations.html


Is it possible for entropy to be negative and For entropy change to be negative and For entropy production to be negative?

Assuming you mean can entropy be reduced; the answer is yes. Only in an open system such as our planet. The universe is a closed systems. The entropy of the universe cannot be reduced. Chemical changes can reduced entropy in an open system. When gas turns into a liquid or when a liquid turns into a solid; entropy is reduced.


Why does water have an entropy of zero when it is at zero kelvin?

At absolute zero temperature, water molecules have no thermal energy to move or vibrate, leading to a highly ordered and structured arrangement. This low energy and high level of order result in minimal entropy, as entropy is a measure of the disorder or randomness in a system.