The vapor pressure of liquid chloroform, CHCl3, is 400.0 torr at 24.1 °C and 100.0 torr at –6.3 °C. What is DeltaH of vaporization for chloroform?

ΔH vaporization of chloroform is 30.1kJ/mol

Explanation:

It is possible to find ΔH of vaporization of certain compound knowing vapor pressure under 2 different absolute temperatures (In Kelvin) by using Clausius-Clapeyron equation:

Where P is vapor pressure. R is gas constant (8.314J/molK) and T absolute temperature of 1, first state and 2, final state.

Absolute temperatures in the problem are:

T₁ = 24.1°C + 273.15 = 297.25K

T₂ = -6.3°C + 273.15 = 266.85K

Replacing:

30073J/mol = 30.1kJ/mol = ΔHVap

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )