Difference Between Enthalpy and Entropy

We know that the major difference between enthalpy and entropy is that even though they are part of a thermodynamic system, enthalpy is represented as the total heat content whereas the entropy is the degree of disorder.

Difference Between Enthalpy and Entropy

In a closed system, \(T.\Delta S=\Delta H\), which means that in absolute temperature with some change in entropy results in a change of enthalpy.

Difference Between Enthalpy and Entropy

Enthalpy is the measure of total heat present in the thermodynamic system where the pressure is constant.

It is represented as \(\Delta H=\Delta E+P\Delta V\) where, E is the internal energy.

Entropy is the measure of disorder in a thermodynamic system. It is represented as \(\Delta S=\Delta Q/T\) where, Q is the heat content and T is the temperature.

Difference Between Enthalpy and Entropy

Enthalpy

Entropy

Enthalpy is a kind of energy

Entropy is a property

It is the sum of internal energy and flow energy

It is the measurement of randomness of molecules

It is denoted by symbol H

It is denoted by symbol S

It was termed by a scientist named Heike Kamerlingh Onnes

It was termed by a scientist named Rudolf Clausius

It unit is \(Jmol^{-1}\)

It unit is \(JK^{-1}\)

It related is applicable in standard conditions

It does not have any limits or conditions.

The system favour minimum enthalpy

The system favour maximum entropy

These were some difference between Enthalpy and Entropy. If you wish to find out more, download BYJU’S The Learning App.

RELATED ARTICLES:


Practise This Question

The length of a foot changes from person to person. Say true or false.