Entropy Calculator

Entropy change for a reaction: Δ Sreaction = Δ Sproducts Δ Sreactants

Enter the unknown value as ‘x’

Entropy Change for a Single Reaction (Δ Sreaction): J/mol K

Total actual entropies for products (Δ Sproducts): J/mol K

Total actual entropies for reactants (Δ Sreactants): J/mol K

x =


Entropy Calculator is a free online tool that displays the entropy change for the chemical reaction. BYJU’S online entropy calculator tool makes the calculation faster, and it displays the entropy in a fraction of seconds.

How to Use the Entropy Calculator?

The procedure to use the entropy calculator is as follows:

Step 1: Enter the product and reactant entropies, and x for an unknown value  in the respective input field

Step 2: Now click the button “Calculate x” to get the entropy

Step 3: Finally, the entropy change of a chemical reaction will be displayed in the output field

What is Meant by Entropy?

In Physics, the term entropy is defined as a quantitative measurement for the disorder or randomness in a system. The entropy comes from the concept of thermodynamics, which majorly deals with the concept of transfer of heat energy within the system. It measures the number of possible arrangements of atoms that the system can have. The entropy is usually denoted by the letter S and its unit is Joules per Kelvin or kg m2. s-2K-1.


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