Gas Constant (\( R \)):

\[ R = C_p - C_v \]

Specific Heat Ratio (\( k \)):

\[ k = \frac{C_p}{C_v} > 1.0 \]

Where:

• \( R \) is the gas constant.
• \( C_p \) is the specific heat at constant pressure.
• \( C_v \) is the specific heat at constant volume.
• \( k \) is the specific heat ratio.