working substance

noun

a substance, usually a fluid, that undergoes changes in pressure, temperature, volume, or form as part of a process for accomplishing work.

working substance

noun

the fluid, esp water, steam, or compressed air, that operates an engine, refrigerator, etc

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Word History and Origins

Origin of working substance¹

First recorded in 1895–1900

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Example Sentences

Examples have not been reviewed.

A calcium ion held in a tapered trap is used as the working substance of a tiny thermodynamic engine.

From Science Magazine

A calcium ion held in a tapered trap is used as the working substance of a tiny thermodynamic engine.

From Science Magazine

Carnot points out that in order to obtain an answer to this question, it is necessary to consider the essential conditions of the process, apart from the mechanism of the engine and the working substance or agent employed.

From

It was necessary to show that the same relation held in all cases which could be examined experimentally, and that the ratio of equivalence of the different forms of energy, measured in different ways, was independent of the manner in which the conversion was effected and of the material or working substance employed.

From

Having established the general notions of a perfect cycle, he proceeds to give a more exact illustration, employing a gas as the working substance.

From

working storage working week

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