Adiabat – Definition & Meaning

The term adiabat is often used in the field of thermodynamics and physics to describe a process in which there is no heat transfer between a system and its surroundings. It is a concept that has been widely studied and applied in various fields of science and engineering. In this article, we will explore the definition, origin, meaning, associations, synonyms, and antonyms of adiabat.

Definitions

Adiabat is a term used to describe a process in which there is no heat transfer between a system and its surroundings. In other words, the system is insulated from its surroundings, and there is no exchange of heat energy between the two. The term is derived from the Greek words “a” (meaning not) and “diabatos” (meaning passable).

Origin

The term adiabat was first used in the field of thermodynamics by the Scottish physicist William Rankine in the mid-19th century. Rankine used the term to describe a process in which there is no heat transfer between a system and its surroundings. Since then, the concept of adiabat has been widely studied and applied in various fields of science and engineering.

Meaning in different dictionaries

According to the Merriam-Webster dictionary, adiabat is defined as “a curve or surface representing the variations of pressure and volume in a thermodynamic system undergoing an adiabatic process.”
The Oxford English Dictionary defines adiabat as “a curve or surface representing the variations of pressure and volume in a thermodynamic system undergoing an adiabatic process, i.e., a process in which no heat is allowed to enter or leave the system.”

Associations

Adiabat is often associated with the first law of thermodynamics, which states that energy cannot be created or destroyed, only transferred or converted from one form to another. Adiabatic processes are also associated with the second law of thermodynamics, which states that the entropy of a closed system will tend to increase over time.

Synonyms

Some synonyms of adiabat include:

  • Insulated process.
  • Isentropic process.
  • Non-heat transfer process.

Antonyms

Some antonyms of adiabat include:

  • Diabatic process.
  • Heat transfer process.
  • Non-insulated process.

The same root words

There are no other words that share the same root words as adiabat.

Example Sentences

Here are some example sentences that use the term adiabat:

  • The adiabat of a gas undergoing an isentropic process is a straight line on a pressure-volume diagram.
  • The adiabatic expansion of a gas in a piston-cylinder system results in a decrease in temperature and pressure.
  • The adiabat of a system undergoing a reversible adiabatic process is steeper than that of a system undergoing an irreversible adiabatic process.
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