The assumptions made about the volume of the actual molecules themselves in a sample of gas, compared to the bulk volume of the gas overall should be determined. Concept Introduction: Using the kinetic theory of gas, the behavior of an ideal gas is explained. This defined the behavior of individual particles of the gas. The following are the postulated of the kinetic theory of gas: The gas is composed of small particles. The size of the particles is very small thus; volume of a single particle of the gas is negligible. The particles of gas are in constant random motion, they colloid with each other and the container’s wall in which they are kept. The interaction between the gaseous molecules is assumed to be negligible. The kinetic energy of the gas is directly proportional to the temperature of gas in Kelvin temperature.

Question

Use the vapor-liquid equilibrium data at 1.0 atm. for methanol-water (Table 2-8 ) for the following: If the methanol vapor mole fraction is 0.600, what is the methanol liquid mole fraction? Is there an azeotrope in the methanol-water system at a pressure of 1.0 atmospheres? If water liquid mole fraction is 0.350, what is the water vapor mole fraction? What are the K values of methanol and of water at a methanol mole fraction in the liquid of 0.200? What is the relative volatility αM-W at a methanol mole fraction in the liquid of 0.200?

Answer 1

Question

Chapter 13, Problem 77QAP

Interpretation Introduction

Interpretation:

The assumptions made about the volume of the actual molecules themselves in a sample of gas, compared to the bulk volume of the gas overall should be determined.

Concept Introduction:

Using the kinetic theory of gas, the behavior of an ideal gas is explained. This defined the behavior of individual particles of the gas.

The following are the postulated of the kinetic theory of gas:

The gas is composed of small particles.

The size of the particles is very small thus; volume of a single particle of the gas is negligible.

The particles of gas are in constant random motion, they colloid with each other and the container’s wall in which they are kept.

The interaction between the gaseous molecules is assumed to be negligible.

The kinetic energy of the gas is directly proportional to the temperature of gas in Kelvin temperature.

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