Table 2 Physicochemical properties of the gas molecules.
Gas molecule | Dipole moment (D) | Molecular size (Å) | Partial charges (approx.) | Polarity |
|---|---|---|---|---|
H₂S | ~ 0.97 | ~ 3.6 × 3.1 × 3.3 | H (δ+), S (δ−) | Polar |
SO₂ | ~ 1.63 | ~ 4.4 × 3.3 × 3.2 | O (δ−), S (δ+) | Polar |
CO₂ | 0 | ~ 5.4 × 3.3 × 2.2 | O (δ−), C (δ+) | Non-polar (linear) |
NO₂ | ~ 0.32 | ~ 3.5 × 3.2 × 3.1 | O (δ−), N (δ+) | Slightly polar |
