The vapor pressure of CCl3 F at 300 K is 856 torr. If 11.5 g of CCl3 F is enclosed in a 1.0-L co

step 1 My name is Ahmad Ali in this question. We have CCL 3F. The total weight of this compound, which

The vapor pressure of CCl3 F at 300 K is 856 torr. If 11.5 g...

The vapor pressure of $\mathrm{CCl}_{3} \mathrm{F}$ at 300 $\mathrm{K}$ is 856 torr. If 11.5 $\mathrm{g}$ of $\mathrm{CCl}_{3} \mathrm{F}$ is enclosed in a $1.0-\mathrm{L}$ container, will any liquid be present? If so, what mass of liquid?

Key Concepts

Molar Mass Conversion

Molar mass conversion is the process of converting a given mass of a substance into moles by using its molar mass as a conversion factor. This conversion is essential in evaluating how many moles of a substance are introduced and comparing that number to the number of moles that can exist in the vapor phase under given conditions.

Vapor Pressure

Vapor pressure is the pressure at which a vapor is in equilibrium with its liquid (or solid) form at a given temperature. It represents the tendency of molecules to escape from the liquid phase into the gas phase and is a key indicator of a substance’s volatility. In problems involving enclosed containers, the vapor pressure determines the maximum pressure the gaseous phase can attain without additional evaporation of the liquid.

Ideal Gas Law

The ideal gas law, expressed as PV = nRT, relates the pressure, volume, temperature, and number of moles of a gas. It is used to calculate the amount of substance in the gaseous phase based on measured or known pressure and temperature conditions. In vapor-liquid equilibrium problems, it helps determine the number of moles the vapor phase can hold at the given vapor pressure.

Phase Equilibrium

Phase equilibrium refers to the state where the phases of a substance, such as liquid and vapor, coexist without net change over time. This equilibrium is maintained when the rate of evaporation equals the rate of condensation. In calculations involving vapor pressure, understanding phase equilibrium is crucial as it dictates that any additional substance beyond what the vapor phase can support will condense into the liquid phase.

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