Question

The normal boiling point of Ta is 5425°C. What is its vapor pressure in mm Hg at 4384°C, if its heat of vaporization is 781.0 kJ/mol?

Do I use the Clausius-clapeyron equation?

Answer 1

Yes, and remember to substitute dHvap in J/mol, not kJ/mol. Also remember T must be in kelvin