Question

The viscosity of mercury at 20 °c is 1.554 cp and 1.450 cp at 40 °c. what is the energy of activation associated with the viscosity?

Answer 1

While the question asks for the enthalpy of vaporization of mercury from viscosity data, such a calculation requires different datasets, such as heat of phase change or vapor pressure at varying temperatures. However, the text mentions that at 160°C, the vapor pressure of mercury is 4.21 torr.

Step-by-step explanation:

The question asks for the calculation of the enthalpy of vaporization (AHvap) of mercury and to predict its vapor pressure at 160°C based on its viscosity data at different temperatures. However, the direct calculation of AHvap from viscosity data is not typically possible. To calculate the enthalpy of vaporization, you would usually need data related to the heat required for the phase change from liquid to gas at a certain temperature or the vapor pressure at different temperatures.

From the provided table with experimentally measured vapor pressures of liquid mercury at various temperatures, we can infer that at 160°C, the vapor pressure of liquid mercury is significant at 4.21 torr, indicating higher volatility at this temperature compared to lower temperatures such as 80.0°C. A detailed calculation may require the application of the Clausius-Clapeyron equation or similar thermodynamic relations, which are not detailed within the provided data snippets.

Answer 2

While the question asks for the enthalpy of vaporization of mercury from viscosity data, such a calculation requires different datasets, such as heat of phase change or vapor pressure at varying temperatures. However, the text mentions that at 160°C, the vapor pressure of mercury is 4.21 torr.

Step-by-step explanation:

The question asks for the calculation of the enthalpy of vaporization (AHvap) of mercury and to predict its vapor pressure at 160°C based on its viscosity data at different temperatures. However, the direct calculation of AHvap from viscosity data is not typically possible. To calculate the enthalpy of vaporization, you would usually need data related to the heat required for the phase change from liquid to gas at a certain temperature or the vapor pressure at different temperatures.

From the provided table with experimentally measured vapor pressures of liquid mercury at various temperatures, we can infer that at 160°C, the vapor pressure of liquid mercury is significant at 4.21 torr, indicating higher volatility at this temperature compared to lower temperatures such as 80.0°C. A detailed calculation may require the application of the Clausius-Clapeyron equation or similar thermodynamic relations, which are not detailed within the provided data snippets.

Answer 3

While the question asks for the enthalpy of vaporization of mercury from viscosity data, such a calculation requires different datasets, such as heat of phase change or vapor pressure at varying temperatures. However, the text mentions that at 160°C, the vapor pressure of mercury is 4.21 torr.

Step-by-step explanation:

The question asks for the calculation of the enthalpy of vaporization (AHvap) of mercury and to predict its vapor pressure at 160°C based on its viscosity data at different temperatures. However, the direct calculation of AHvap from viscosity data is not typically possible. To calculate the enthalpy of vaporization, you would usually need data related to the heat required for the phase change from liquid to gas at a certain temperature or the vapor pressure at different temperatures.

From the provided table with experimentally measured vapor pressures of liquid mercury at various temperatures, we can infer that at 160°C, the vapor pressure of liquid mercury is significant at 4.21 torr, indicating higher volatility at this temperature compared to lower temperatures such as 80.0°C. A detailed calculation may require the application of the Clausius-Clapeyron equation or similar thermodynamic relations, which are not detailed within the provided data snippets.