Boiling Point and Vapor Pressure Estimation of Carbon Disulfide

Estimating the boiling point of carbon disulfide and its vapor pressure at 20°C involves utilizing the ΔH° and ΔS° values provided in the data. These values play a crucial role in determining the phase change behavior of carbon disulfide from liquid to gas.

The ΔH° value represents the change in enthalpy during the phase change, indicating the heat absorbed or released at constant pressure. On the other hand, the ΔS° value signifies the change in entropy, which reflects the degree of randomness or energy dispersal in the system.

By applying the Clausius-Clapeyron's Equation, which describes the phase equilibrium between liquid and gas states, one can estimate the boiling point of carbon disulfide. Setting ΔG° to 0 in the equation (ΔG° = ΔH° - TΔS°) and solving for temperature T in Kelvin allows for the calculation of the boiling point. Converting the temperature to Celsius provides the estimated boiling point.

Furthermore, the vapor pressure of carbon disulfide at 20°C in Torr can also be determined using the Clausius-Clapeyron Equation. By solving for pressure (P) with the calculated ΔH°, ΔS°, and temperature T in Kelvin, one can obtain an estimation of the vapor pressure at the specified temperature.

Conclusion

The data provided serves as the foundation for estimating the boiling point and vapor pressure of carbon disulfide through the utilization of ΔH° and ΔS° values. By understanding the relationship between these values and the phase change behavior of the substance, one can make accurate predictions regarding its thermodynamic properties.