Entropy Change

Entropy Change - Perform scientific calculations with precision and accuracy.

Free to use

12,500+ users

Updated January 2025

Instant results

Entropy Change Calculator

Thermodynamic Calculations

Select Process Type

Heat Transferred (Q) in Joules

Absolute Temperature (T) in Kelvin

Entropy Change in an Isothermal Process

Entropy (S) is a measure of the disorder or randomness in a system. The change in entropy (ΔS) represents the change in this disorder during a thermodynamic process. A positive ΔS indicates an increase in disorder.

ΔS = Q / T

Related Science Calculators

Arrhenius Equation

Calculate reaction rate constants and activation energy.

Battery Energy Density

Calculate battery energy density, capacity, and performance metrics.

Beer–Lambert Law

Calculate absorbance, concentration, molar absorptivity, and path length.

Buffer Solution

Calculate pH and composition of buffer solutions using Henderson-Hasselbalch equation.

Capacitance

Capacitance - Perform scientific calculations with precision and accuracy.

Carbon Footprint Calculator

Estimate your annual CO₂ emissions based on your lifestyle, including transportation, home energy, and diet.