Free Entropy Change Calculator
Calculate entropy change for a reversible heat transfer: DeltaS = Q / T.
J
K
Entropy Change
3.3333 J/K
Entropy Change vs Heat Transferred
Entropy Change
Entropy measures the disorder or unavailability of energy in a system.
Formula
DeltaS = Q / T
for a reversible process at constant temperature. Positive DeltaS means entropy increases (heat absorbed). The second law states that total entropy of an isolated system never decreases.
Example Calculation
1000 J of heat absorbed at 300 K.
- 01DeltaS = Q / T
- 02DeltaS = 1000 / 300
- 03DeltaS = 3.333 J/K
Frequently Asked Questions
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