Vapour is introduced at a uniform rate into a closed vessel that was initially evacuated. The pressure within the vessel

Step-by-step solution

When vapour is introduced into an evacuated closed vessel at a constant temperature, the number of moles of vapour in the gas phase increases. According to the ideal gas equation, P = nRT V , the pressure increases as the number of moles n increases. This increase in pressure continues until the pressure reaches the saturated vapour pressure of the substance at that temperature. Once the saturated vapour pressure is reached, an equilibrium is established between the liquid and vapour phases. Any further addition of