Question

The vapor pressure of diethyl ether is 400 mm Hg at 18.0 °C. From the plot of vapor pressures vs temperature above, estimate the temperature at which the vapor pressure of carbon disulfide is 400 mm Hg____°C The heat of vaporization of diethyl ether would be expected to be ____ than the heat of vaporization of carbon disulfide.

Answer 1

Unfortunately, the plot of vapor pressures vs temperature mentioned in the question is not provided. However, we can still use the given information to make some general observations.

The fact that the vapor pressure of diethyl ether is 400 mm Hg at 18.0 °C means that at this temperature, the pressure exerted by the vapor above the liquid is equal to 400 mm Hg. We can assume that the vapor pressure of carbon disulfide will also be 400 mm Hg at a specific temperature.

To estimate this temperature, we need to refer to the vapor pressure-temperature plot for carbon disulfide. Generally, the heat of vaporization of a substance is related to its vapor pressure-temperature behavior. However, without this plot, we cannot make a direct comparison between the heat of vaporization of diethyl ether and carbon disulfide.