Answer and Explanation:
The intermolecular forces between C and O for CO2 are dispersion forces and the electron cloud is smaller. These forces are particularly weak, so this is why CO2 has a boiling point very lower.
For CS2, their intermolecular forces are higher despite containing the same forces between C and O in CO2 (Dispersion forces). This is because sulfide has a larger electron cloud, and then, it's more polarizable making its boiling point be higher.
