Q1: Assuming applicability of ideal gas law, the pure component volume of the vapor in a saturated gas can be calculated from theoretical relationship. The volumetric composition of a vapor saturated gas is independent of the

ANS:B - nature of the gas.

The volumetric composition of a vapor saturated gas, when assuming the applicability of the ideal gas law, is independent of the nature of the liquid. According to Raoult's law, the partial pressure of a component in the vapor phase above a liquid mixture is directly proportional to the mole fraction of that component in the liquid phase. This relationship holds true for ideal solutions and is independent of the nature of the liquid solvent. However, the nature of the gas phase and the temperature of the liquid can affect the partial pressures and the overall behavior of the system. The total pressure in the system will depend on both the partial pressures of the components and their individual vapor pressures at a given temperature. So, among the options provided, the volumetric composition of a vapor saturated gas is independent of the nature of the liquid.