Entropy – What is Entropy In Thermodynamics? (ANSWERS)

Answers To The Question: What is Entropy In Thermodynamics

ENTROPY – In this article we will learn what is entropy in thermodynamics

The ice in this drink is slowly melting. In time, the thermal equilibrium will be reached by the liquid, as predicted by the second law of thermodynamics .

Entropy - What is Entropy In Thermodynamics? (ANSWERS)
Image by: Delish.com

It was first coined by Rudolf Clausius. It is derived from the Greek word “tropee” which means transformation.

It is also the extensive property of a system depending on the mass of the system. It is also measured in J/k (Joules per degree Kelvin).

By definition, it is heat or energy change per degree kelvin temperature. It is indicated by “S”, while specific entropy is denoted by ‘s’ in mostly all mathematical calculations.

The study of entropy plays a pivotal role in the study of thermodynamics. It has also been introduced via the concept of the heat engine.

The entropy of the system is measured in relative terms rather than in absolute terms. It is measured with respect to the changes the system has undergone from its previous state to its final one.

According to Bright Hub Engineering, entropy is always calculated as the change in entropy of the system denoted by ∆S and not merely S.

There is also this thing called Isentropic Process. It is the process during which the entropy of the system stays constant.

During this process, the value of entropy of a system at its initial and end state stays constant. With this, the value of entropy during the process would be ∆S=0.

This process could also be reversible or irreversible. For it to be reversible, adiabatic process must also be done.

An adiabatic process occurs without transfer of heat or mass of substances between a thermodynamic system and its surroundings. This means that the adiabatic process transfers energy to the surroundings as work.

If the process is not adiabatic, then the isentropic process would be irreversible. This implies that the adiabatic process is always a reversible isentropic process.

However in actual practice, the reversible isentropic process is only an ideal process. This means that it never really occurs in actuality.

In actual practice, whenever there is a change in the state of the system, entropy increases. This may be due to internal or external interactions.

Thanks for reading. We aim to provide our readers with the freshest and most in-demand content. Come back next time for the latest news here on Philnews.

Like this article? READ ALSO: Capacitor – What Are Its Different Uses? (Answers)

Leave a Comment