Use the table below to answer the questions that follow. Thermodynamic Quantities for Selected Substances at 298.15 K (25 °C) is Substance AHᵒf (kJ/mol) AG°f (kJ/mol)S (J/K-mol) Calcium Ca (s) CaCl2 (s) Ca₂+ (aq) Chlorine Cl2 (g) Cl- (aq) Oxygen O2 (g) H₂0 (1) Phosphorus P2 (g) 144.3 PC13 (g) -288.1 POCI3 (g) -542.2 Sulfur S (s, rhombic) 0 SO2(g) SO3(g) +795.8 -397.9 -795.8 0.00 0 -795.8 226.7 +397.9 0 -167.2 0 -285.83 kJ/mol. -269.9 -395.2 Ca (s) + Cl2 (g) → CaCl2 (s) -748.1 209.2 -131.2 -237.13 0 -300.4 -370.4 0 103.7 -269.6 -502.5 0 0 41.4 104.6 200.8 The value of AH° for the formation of calcium chloride from its constituent elements, 222.96 56.5 205.0 69.91 218.1 311.7 325 31.88 248.5 256.2

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Use the table below to answer the questions that follow.
Thermodynamic Quantities for Selected Substances at 298.15 K (25 °C)
is
Substance AHᵒf (kJ/mol)AG°f (kJ/mol)S (J/K-mol)
Calcium
Ca (s)
CaCl2 (s)
Ca₂+ (aq)
Chlorine
Cl2 (g)
Cl- (aq)
Oxygen
O2 (g)
H₂O (1)
Phosphorus
P2 (g)
144.3
PC|3 (g)
-288.1
POCI3 (g) -542.2
Sulfur
S (s, rhombic) O
SO2(g) -269.9
SO3(g)
-395.2
+795.8
-397.9
-795.8
0
-795.8
226.7
0.00
O
-167.2
+397.9
O
-285.83
kJ/mol.
Ca (s) + Cl2 (g) → CaCl2 (s)
-748.1
209.2
0
-237.13
-131.2
0
0
103.7
-269.6
-502.5
0
-300.4
-370.4
41.4
104.6
200.8
The value of AH° for the formation of calcium chloride from its constituent elements,
222.96
56.5
205.0
69.91
218.1
311.7
325
31.88
248.5
256.2
Transcribed Image Text:Use the table below to answer the questions that follow. Thermodynamic Quantities for Selected Substances at 298.15 K (25 °C) is Substance AHᵒf (kJ/mol)AG°f (kJ/mol)S (J/K-mol) Calcium Ca (s) CaCl2 (s) Ca₂+ (aq) Chlorine Cl2 (g) Cl- (aq) Oxygen O2 (g) H₂O (1) Phosphorus P2 (g) 144.3 PC|3 (g) -288.1 POCI3 (g) -542.2 Sulfur S (s, rhombic) O SO2(g) -269.9 SO3(g) -395.2 +795.8 -397.9 -795.8 0 -795.8 226.7 0.00 O -167.2 +397.9 O -285.83 kJ/mol. Ca (s) + Cl2 (g) → CaCl2 (s) -748.1 209.2 0 -237.13 -131.2 0 0 103.7 -269.6 -502.5 0 -300.4 -370.4 41.4 104.6 200.8 The value of AH° for the formation of calcium chloride from its constituent elements, 222.96 56.5 205.0 69.91 218.1 311.7 325 31.88 248.5 256.2
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