first law of thermodynamics

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  • noun

Synonyms for first law of thermodynamics

the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes

References in periodicals archive ?
Gas diffusion rate is proportional to the concentration gradient according to Fick's 1st Law (Eqn 1) (Glinski and Stepniewski 1985; Ghildyal and Tripathi 1987).
In practice Fick's 1st Law application includes the assumption of a steady-state.
2]O emission by Fick's 1st Law occurred once in the poorly drained soil (Fig.
2]O emission was over-estimated by Fick's 1st Law at the time when the urine was applied, but probably for a different reason (Fig.