Split_00018 - 8.41 a. U | C bJ mol Kg = 4512 + 0.01765T bKg...

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8- 18 8.41 a. Ca b T p =+ b a CT p = = =− = U V | | W | | ⇒⋅ = + 5394 5041 500 300 0 01765 5394 0 01765 500 4512 4512 0 01765 .. . . bg b g b g Jmo lK K NaCl ss l ,, , 300 1073 1073 KN a C l a C l K b g b g →→ ΔΔ ±± . . HC d T H T d T ps m = + L N M O Q P + z z 300 1073 300 1073 4 4512 001765 3021 744 10 1073 K J mol kJ 10 J mol 1 kJ l 3 bg b g b. QU nC d TU vm vp mm CC UH == + z 300 1073 ± 1073 K QH n H ≈= = ± . 200 kg 10 g 1 mol 74450 J 1 kg 58.44 g mol J 3 255 10 8 c. t = × × = 2.55 10 J s 1 kJ 0.85 3000 kJ 10 J 100 s 8 3 8.42 Δ ± . H v = 3598 kJ mol , T b = 1362 . C 409.4 K , P c = 37 0 . a tm , T c = 619.7 K (from Table B.1) Trouton's rule: Δ ± . . HT vb = 0 088 0 088 36 0 01% b g b g 409.4 K kJ mol error Chen's rule: Δ ± . l o g . H T T T P T T v b b c c b c F H G I K J −+ L N M M O Q P P F H G I K J 0 0331 0 0327 0 0297 107 10 = 357 . kJ mol (–0.7% error) Watson’s correlation : Δ ± . . . H v 100 3598 619 7 3732 619 7 409 4
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