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It's not that entropy can't be reversed, it's that the entropy of the universe is always increasing. That means that while you can reduce the entropy of something, the entropy of another thing must go up even more so that in total, the entropy goes up.

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Is ice reversible or irreversible?

Irreversible because the ordered arrangement of molecules in the ice crystals is lost and the entropy increases. Irreversible because the ordered arrangement of molecules in the ice crystals is lost and the entropy increases.


Is ice a reversible or irreversible?

Irreversible because the ordered arrangement of molecules in the ice crystals is lost and the entropy increases. Irreversible because the ordered arrangement of molecules in the ice crystals is lost and the entropy increases.


Why are all spontaneous processes irreversible?

Spontaneous processes are irreversible because they involve an increase in entropy, or disorder, in the system. This increase in entropy leads to a loss of energy that cannot be fully recovered, making the process irreversible.


Why adiabatic mixing of two fluids is irreversible?

Adiabatic mixing of two fluids is irreversible because it involves an increase in entropy. When the two fluids mix, their individual molecular arrangements are disrupted, leading to increased disorder and randomness in the system, which is reflected in higher entropy. This irreversible increase in entropy makes the process of adiabatic mixing irreversible.


When does an irreversible process occurs?

An irreversible process occurs whenever there is an increase in entropy. Entropy can be thought of as a measure of "wasted" energy, that is, energy that cannot be converted to useful work. Therefore any process which results in an increase in entropy wastes some portion of energy that cannot be recovered, and so the process is irreversible.


Why entropy cannot find during irreversible process?

Entropy can be found in an irreversible process, just not directly. Since entropy is a state variable, you can invent a path connecting the initial and final states that does consist of reversible processes and then compute the total equilibrium change for that path.


Is entropy of adiabatic compression increase or decrese?

entropy of system for a reversible adiabatic process is equal to zero. entropy of system for a irreversible adiabatic process (like free expansion) can be achieved by the following formula: Delta S= n Cp ln(V2/V1) + n Cv ln (P2/P1)


How can one determine if a process is reversible or irreversible?

A process is reversible if it can be reversed without any loss of energy or increase in entropy. One way to determine if a process is reversible is to see if it can be undone by making small changes to the system. If the process cannot be undone without some loss of energy or increase in entropy, then it is irreversible.


Can entropy decrease during a process?

in general entropy will not decrease in a spontaneous process since spontaneous process are all irreversible ones. entropy can be reversed only through an reversible process by an ideal engine but it is impossible to create such an engine by violating second law of thermodynamics. hence entropy cannot be decreased practically


What does wasted energy add too?

Wasted energy will increase the amount of useless, or unusable, energy, and reduce the amount of usable energy in the Universe. The wasted energy is related to entropy - one way to express the Second Law of Thermodynamics is to say that there are irreversible processes (in terms of energy), another is that "entropy increases". However, entropy is not energy; it is not measured in Joule, but in Joule/Kelvin. In any case, you might say that when energy is wasted, entropy increases.Wasted energy will increase the amount of useless, or unusable, energy, and reduce the amount of usable energy in the Universe. The wasted energy is related to entropy - one way to express the Second Law of Thermodynamics is to say that there are irreversible processes (in terms of energy), another is that "entropy increases". However, entropy is not energy; it is not measured in Joule, but in Joule/Kelvin. In any case, you might say that when energy is wasted, entropy increases.Wasted energy will increase the amount of useless, or unusable, energy, and reduce the amount of usable energy in the Universe. The wasted energy is related to entropy - one way to express the Second Law of Thermodynamics is to say that there are irreversible processes (in terms of energy), another is that "entropy increases". However, entropy is not energy; it is not measured in Joule, but in Joule/Kelvin. In any case, you might say that when energy is wasted, entropy increases.Wasted energy will increase the amount of useless, or unusable, energy, and reduce the amount of usable energy in the Universe. The wasted energy is related to entropy - one way to express the Second Law of Thermodynamics is to say that there are irreversible processes (in terms of energy), another is that "entropy increases". However, entropy is not energy; it is not measured in Joule, but in Joule/Kelvin. In any case, you might say that when energy is wasted, entropy increases.


Why are some things reversible and irreversible?

Some physical and chemical processes are reversible, meaning they can occur in both directions, while others are irreversible because they involve a change that cannot easily be undone. Reversibility is influenced by factors such as energy input, enthalpy changes, entropy changes, and the presence of catalysts that can facilitate reversibility. Irreversible processes often involve a substantial increase in entropy or the formation of stable products that are difficult to break down.


What happens to entropy when pressure decreases?

When pressure decreases, entropy increases. Increases in entropy correspond to pressure decreases and other irreversible changes in a system. Entropy determines that thermal energy always flows spontaneously from regions of higher temperature to regions of lower temperature, in the form of heat.