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Entropy

$DeltaS = Q/T$

$(Q) " Heat"$

$(T) " Temperature"$

Tags

The Entropy Calculator is used to calculate the change in a reservoir by using Heat(Q) and Absolute Temperature(K).

INSTRUCTIONS: Enter the following:

(Q) = Heat (J)
(T) = Absolute Temperature (K)

Entropy $Delta$ S = The calculator returns the change in entropy in Joules/Kelvin.

The Math / Science

Entropy has two ways to being defined:

A way to measure the amount of disorder in a system.
A measure of thermodynamic equilibrium.

$Delta$ S = $Q/T$

where

$Delta$ S = entropy (J/K)
Q = Heat (J)
T = Absolute Temperature (K)

References

Light and Matter Chapter 16.3: Entropy