Entropy: Increase in Energy, Decrease in Temp?

Null_ · May 18, 2010

Second law of thermo- dS = δq /T
Getting what I think straight: it was extremely hot at the big bang, and all matter existed within the "sphere" or whatever you wish to call the point. There was nothing outside this, so the average temperature was incredibly high. As the universe expanded, the mass just spread out, forming into quarks, then protons, then atoms, etc. The kinetic energy spread out as well. I assume that the energy lost in the cooling process was transferred into the energy used in expanding, which is why the universe is still cooling, because it is still expanding.

Basically, I'm asking why entropy is increasing if the temperature of the universe is decreasing. Is entropy a function of energy, not temperature then? And if so, then why is it not constant?

lippyka · May 18, 2010

Is it because of the process of energy conversion? In other words, energy is converted from one form to another, and the entropy increases as energy is dispersed into more forms.

Entropy: Increase in Energy, Decrease in Temp?

1. What is entropy?
Entropy is a measure of the disorder or randomness in a system. It is a physical quantity that describes the amount of energy that is unavailable for work in a thermodynamic process.

2. How does the increase in energy affect entropy?
An increase in energy leads to an increase in entropy. This is because as energy is added to a system, the particles within the system have more energy and move around more, leading to a greater degree of disorder.

3. Why does entropy decrease as temperature decreases?
As temperature decreases, the particles in a system have less energy and move around less, resulting in a decrease in disorder. This decrease in disorder leads to a decrease in entropy.

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Entropy: Increase in Energy, Decrease in Temp?

1. What is entropy?Entropy is a measure of the disorder or randomness in a system. It is a physical quantity that describes the amount of energy that is unavailable for work in a thermodynamic process.

2. How does the increase in energy affect entropy?An increase in energy leads to an increase in entropy. This is because as energy is added to a system, the particles within the system have more energy and move around more, leading to a greater degree of disorder.

3. Why does entropy decrease as temperature decreases?As temperature decreases, the particles in a system have less energy and move around less, resulting in a decrease in disorder. This decrease in disorder leads to a decrease in entropy.

Similar threads

Hot Threads

Recent Insights

1. What is entropy?
Entropy is a measure of the disorder or randomness in a system. It is a physical quantity that describes the amount of energy that is unavailable for work in a thermodynamic process.

2. How does the increase in energy affect entropy?
An increase in energy leads to an increase in entropy. This is because as energy is added to a system, the particles within the system have more energy and move around more, leading to a greater degree of disorder.

3. Why does entropy decrease as temperature decreases?
As temperature decreases, the particles in a system have less energy and move around less, resulting in a decrease in disorder. This decrease in disorder leads to a decrease in entropy.