Chapter 8-Key (even)

Chapter 8-Key (even) - 8.34-550 J 8.36 0.456 8.38 (a) ΔG...

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Chapter 8 (Key) 8.2 All five processes occur and are spontaneous 8.4 (a) 81 (b) 1/81 8.6 more microstates and higher entropy 8.8 23 10 4 . 5 10 1 x 8.10 (a) ΔS<0 (b) ΔS>0 (c) ΔS >0 8.12 (a) 0.250 (b) -750 J (c) 0.250J 8.14 80.40 J K -1 mol -1 8.16 184 K 8.18 11.0 J K -1 8.20 16.7 J K -1 >0 8.22 (a) -7.83 J K -1 (b) 1.36 J K -1 8.24 (a) 112.8 J K -1 (b) ΔS is larger than (a) 8.26 ΔS o for the reaction forming HF is less than extrapolation from the values for the other reactions would predict 8.28 ΔS surr must be larger and negative in sign in the proposed process to prevent the process from being spontaneous 8.30 (a) ions get solvated by water => reduces the entropy (b) -149.6 J K -1 8.32 (a) -300 J (b) ΔG increases by a factor of 2.50 (c) ΔG<0 for this process (d) 284 K
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Unformatted text preview: 8.34-550 J 8.36 0.456 8.38 (a) ΔG =0 @ 790 K, below this T the reaction is spontaneous (b) Reaction is spontaneous (c) Spontaneous about 960 K 8.40 (a) 345.08 kJ (b) high T will make ΔG<0 8.42 ΔS sys >0 8.44 5.98 J K-1 8.46 3.8 J K-1 8.48 3x10-151 8.50 (a) 23 10 81 . 1 10 x (b) 5.76 J K-1 8.52 (a) 5.2 J K-1 (b) 7680 J 8.54 432.3 K 8.56 A must have a lower vapor P and lower solubility 8.58 9.5x10 3 K 8.60 For cis, 216.71 J K-1 mol-1 ; trans 219.63 J K-1 mol-1 8.62 (a) ΔH o vap of a liquid decreases with increasing T and becomes 0 @ T c (b) 85.8 J K-1 mol-1 8.64 Number of microstates (and energy) remains constant...
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This note was uploaded on 08/06/2008 for the course CHEM 2B taught by Professor Nguyen during the Winter '07 term at UCSB.

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Chapter 8-Key (even) - 8.34-550 J 8.36 0.456 8.38 (a) ΔG...

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