heat of reaction

noun

1. chem the heat evolved or absorbed when one mole of a product is formed at constant pressure

Example Sentences

All properties of any system, including the heat of reaction, are expressible in terms of its available energy A, equal to E − Tϕ + ϕ0T.

From Project Gutenberg

K; thus, when the reaction is spontaneous without requiring external work, the heat absorbed per molecule of reaction is −T� d   δA0 , or −R′T� d log K. dT T dT This formula has been utilized by van ’t Hoff to determine, in terms of the heat of reaction, the displacement of equilibrium in various systems arising from change of temperature; for K, equal to N1n1N2n2 ..., is the reaction-parameter through which alone the temperature affects the law of chemical equilibrium in dilute systems.

From Project Gutenberg

It will be noticed that when dE/dT is zero, that is, when the electromotive force of the cell does not change with temperature, the electromotive force is measured by the heat of reaction per unit of electrochemical change.

From Project Gutenberg

It decomposes water very vigorously, the heat of reaction being sufficient to ignite the hydrogen evolved.

From Project Gutenberg

This is always understood to be the case in equations where the heat of reaction is given.

From Project Gutenberg