Question

The vapor pressure of liquid nickel is 400 mm Hg at 2.89×10³ K. Assuming that its molar heat of vaporization is constant at 410 kJ/mol, the vapor pressure of liquid Ni is mm Hg at a temperature of 2.93×10³ K. Submit Answer

Answer 1

Giuen liquid Nickel Iritial Vapor pressure Initial temperature P, = 400 mm Hg 2 ·89 x 10 K T, %3D 2890 K Jinal temperature 2.93 x 10 K T2 !3D 2930 K ok3/mole molar heat of vaporization = 410KJ, A Hvap constant = 0. 008314 kJ/mole K Universal gao Irom Clausus Clapuyron equatior Ниаp In Pe P1 T2 - 410 KJ/mot 0C08 314 KI/motK | 2930 1. In Pz к %3D 400 2890 In Pe = -410) x(-4 0) 400 0.008314 x 2930 x 2890 In Pa 400 410 x40 0:233 70400-458 Jaking inuerse logarith mic (Pe / 400 ) = 0-233 = 1-26 2 3 of tig. Но 504-952 mm %3D * voрое рane« Ni at 2-93 x 10° к ім of Hg. 504.952 mm

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