 asked in category: General Last Updated: 7th June, 2020

# What is ln P?

? +C. (1) where ln P is the natural logarithm of the vapor pressure, ∆Hvap is the heat of vaporization, R is the universal gas constant (8.31 J·K-1mol-1), T the absolute temperature, and C a constant (not related to heat capacity).

Also to know is, what is the Clausius Clapeyron equation used for?

This is known as the Clausius-Clapeyron Equation and allows us to estimate the vapor pressure at another temperature, if the vapor pressure is known at some temperature, and if the enthalpy of vaporization is known. The vapor pressure of water is 1.0 atm at 373 K, and the enthalpy of vaporization is 40.7 kJ mol-1.

Additionally, what is Cox chart? Cox chart. [′käks ‚chärt] (chemistry) A straight-line graph of the logarithm of vapor pressure against a special nonuniform temperature scale; vapor pressure-temperature lines for many substances intersect at a common point on the Cox chart.

In this way, what is the Clausius Clapeyron equation and why is it important?

Clausius-Clapeyron equation is used for the following purposes: To estimate the vapor pressure at any temperature. To Estimate the heat vaporization of phase transition from the vapor pressures measured at two temperatures.

What is the R in the Clausius Clapeyron equation?

where ln P is the natural logarithm of the vapor pressure, ∆Hvap is the heat of vaporization, R is the universal gas constant (8.31 J·K-1mol-1), T the absolute temperature, and C a constant (not related to heat capacity).

5

7th June, 2020

779

Questions

Videos

Users