The specific gas constant for dry air, often denoted as “R” (or “R_d” to distinguish it from the universal gas constant “R”), is a fundamental constant used in thermodynamics and fluid dynamics to describe the behavior of dry air.
The specific gas constant for dry air can be calculated using the following formula:
- “R” is the universal gas constant, which is approximately 8.314 joules per mole per kelvin (J/(mol·K)) in the International System of Units (SI).
- “M_d” is the molar mass of dry air, which is approximately 0.029 kg/mol.