Entropy meaning?
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Posted by Dev ?? ? 4 years, 9 months ago
- 2 answers
Gaurav Seth 4 years, 9 months ago
Entropy is a measure of randomness or disorder of the system.
The greater the randomness, higher is the entropy.
Solid state has the lowest entropy, the gaseous state has the highest entropy and the liquid state has the entropy in between the two.
Entropy is a state function. The change in its value during a process, is called the entropy change.
ΔS = S2 -S1 = ∑S products – ∑S reactants
1) When a system absorbs heat ,the molecules start moving faster because kinetic energy increases. Hence, disorder increases. More the heat absorbed ,greater is the disorder.
2) For the same amount of heat absorbed at low temperature, the disorder is more than at high temperature. This shows that entropy change is inversely proportional to temperature.
ΔS = qrev / T
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Jyoti Yadav 4 years, 9 months ago
0Thank You