Thermodynamics Key Values Standard Enthalpy Formation Entropy

Overview

Engineering reference data for Thermodynamics Key Values Standard Enthalpy Formation Entropy in thermodynamics.

Key Formulas

First Law

$\Delta U = Q - W$

Energy is conserved — heat added minus work done.

Ideal Gas Law

$PV = nRT$

Relates pressure, volume, and temperature of an ideal gas.

Heat Transfer

$Q = mc\Delta T$

Sensible heat transfer.

Carnot Efficiency

$\eta = 1 - T_C/T_H$

Maximum efficiency between two temperatures.

Variables

Thermodynamic Key Values Data Table

The following table contains internationally agreed values for the thermodynamic properties of key chemical substances. These internally consistent values are strongly recommended for the analysis of thermodynamic measurements, data reduction, and the preparation of other thermodynamic tables.

References

• Original Source