b.The molar heat capacity of white tin (Sngwhite)) Varies with temperature as follows: 80 T/K 20 |Ca/JK" | 30 | 40 60 198 249 274 289 1.970 | 5.460| 9.387 | 15.33 | 19.49 | 26.17 | 26.71 26.84 26.88 Calculate AG from grey/white tin transformation at 298 K [Given: S3s6agrwy) = 38.77 J K' AH(s«pey) →s«nh#e) = 2234 J]

b.The molar heat capacity of white tin (Sngwhite)) Varies with temperature as follows: 80 T/K 20 |Ca/JK" | 30 | 40 60 198 249 274 289 1.970 | 5.460| 9.387 | 15.33 | 19.49 | 26.17 | 26.71 26.84 26.88 Calculate AG from grey/white tin transformation at 298 K [Given: S3s6agrwy) = 38.77 J K' AH(s«pey) →s«nh#e) = 2234 J]

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter10: Energy

Section: Chapter Questions

Problem 18ALQ

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A novel inorganic compound has two different crystalline forms, namely blue and red crystals. The physical and thermodynamic properties of blue and red crystals are given below. Mw of the novel inorganic compound is 86.54 g mol1. Properties (T = 298 K, P = 1.00 bar) Blue Red AH; (kJ mol 1) -1722.6 -1722.9 AG (KJ mol 1) -1648.5 -1647.1 Sin (U K1 mol 1) 86.4 81.2 CPm (JK1 mol 1) 66.5 65.7 Density (g mL 1) 2.145 2.278 What pressure must be achieved to induce the conversion of blue to red crystal at T = 298 K? Assume both blue and red crystals are incompressible at T = 298 K. Answer in bar to 0 decimal place (e.g. 1762)
For molecular oxygen, So298 = 205.138 J K-1 mol-1. Find So at Temp 1315 K for O2 given that Cop (J K-1 mol-1) = 25.72 + 12. 98x10-3 T – 38.62 x 10-7 T2 Note that: del S = So final – So initial, answer in J K-1 mol-1
b.The molar heat capacity of white tin (Snwhite) Varies with temperature as follows: 30 40 60 | 5.460 9.387 | 15.33 | 19.49 26.17 26.71 T/K 20 80 198 249 274 289 Cam/JK" 1.970 26.84 26.88 Calculate AG from grey/white tin transformation at 298 K (Given: Sywsm pry = 38.77 J K' AHsaey) Satwhae) = 2234 J]
b.The molar heat capacity of white tin (Sn(white) Varies with temperature as follows: T/K 20 30 40 60 80 198 249 274 289 Cp.m/JKT 1.970 5.460 9.387 15.33 19.49 26.17 26.71 26.84 26.88 Calculate AG from grey/white tin transformation at 298 K [Given: S29(Sa(grey) = 38.77 J K AH Sa(grey) Sn(white) = 2234 J]
The molar heat capacity of white tin (Sn(white)) varies with temperature as follows:T/K 20 30 40 60 80 198 249 274 289 Cp,m/JK-1 1.970 5.460 9.387 15.33 19.49 26.17 26.71 26.84 26.88Calculate change in G from grey/white tin transformation at 298 K [Given: S298(Sn(grey) = 38.77 J K-1 ΔH(Sn(grey) →Sn(white) = 2234 J]
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