Why cooling is produced when ice melts
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When water is cooled to ice what happens to its entropy?
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Gaston Nusimovich, studied Industrial Engineering & Chemical Engineering at Instituto Tecnológico De Buenos Aires
Updated Dec 30, 2016
The fact that we can actually cool water it means that it is a real process, a process that can actually happen, so, it is a process allowed by the laws of thermodynamics.
All real processes are irreversible processes, and irreversible processes are such that total entropy of the system increases.
How is that entropy increases when we cool water?
You just can’t cool water by itself, you have to transfer some of the heat contained in water to something else, like say, the coolant in the fridge.
So, the system is the water and the coolant.
The difference in entropy of the system is the sum of the difference of entropy for the water and the difference of entropy for the coolant.
The increase of entropy for the coolant is much higher than the decrease of entropy for the water, so, the entropy of the system increases.
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6 ANSWERS

Gaston Nusimovich, studied Industrial Engineering & Chemical Engineering at Instituto Tecnológico De Buenos Aires
Updated Dec 30, 2016
The fact that we can actually cool water it means that it is a real process, a process that can actually happen, so, it is a process allowed by the laws of thermodynamics.
All real processes are irreversible processes, and irreversible processes are such that total entropy of the system increases.
How is that entropy increases when we cool water?
You just can’t cool water by itself, you have to transfer some of the heat contained in water to something else, like say, the coolant in the fridge.
So, the system is the water and the coolant.
The difference in entropy of the system is the sum of the difference of entropy for the water and the difference of entropy for the coolant.
The increase of entropy for the coolant is much higher than the decrease of entropy for the water, so, the entropy of the system increases.
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cooling is produced when ice melt because it absorb the surrounding heat thus making the surrounding cool
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