Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the temperature. Additionally, the values of these other properties of X have been determined: melting point 25. °C boiling point 55. °C enthalpy of fusion 9.00 kJ/mol enthalpy of 49.00 kJ/mol vaporization 2.00 g/cm (solid) density 37. J.Kmol 1 1 (solid) olo 1.70 g/mL (liquid) heat capacity 51. J·Kmol (liquid) -1 Ar 43. J-к "mol (vapor) You may also assume X behaves as an ideal gas in the vapor phase. Suppose a small sample of X at 0 °C is put into an evacuated flask and heated at a constant rate until 15.0 kJ/mol of heat has been added to the sample. Graph the temperature of the sample that would be observed during this experiment. 100 90- ? 80- 70 60 50 40 30 20 10 10 15 heat added (kJ/mol) temperature (*C)

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Chapter1: Chemical Foundations
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Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the temperature. Additionally, the values of these other properties of X
have been determined:
melting point
25. °C
boiling point
55. °C
enthalpy of fusion
9.00 kJ/mol
enthalpy of
49.00 kJ/mol
vaporization
2.00 g/cm (solid)
density
37. J.Kmol
1
1
(solid)
olo
1.70 g/mL (liquid)
heat capacity
51. J·Kmol (liquid)
-1
Ar
43. J-к "mol (vapor)
You may also assume X behaves as an ideal gas in the vapor phase.
Suppose a small sample of X at 0 °C is put into an evacuated flask and heated at a constant rate until 15.0 kJ/mol of heat has been added to the sample. Graph
the temperature of the sample that would be observed during this experiment.
100
90-
?
80-
70
60
50
40
30
20
10
10
15
heat added (kJ/mol)
temperature (*C)
Transcribed Image Text:Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the temperature. Additionally, the values of these other properties of X have been determined: melting point 25. °C boiling point 55. °C enthalpy of fusion 9.00 kJ/mol enthalpy of 49.00 kJ/mol vaporization 2.00 g/cm (solid) density 37. J.Kmol 1 1 (solid) olo 1.70 g/mL (liquid) heat capacity 51. J·Kmol (liquid) -1 Ar 43. J-к "mol (vapor) You may also assume X behaves as an ideal gas in the vapor phase. Suppose a small sample of X at 0 °C is put into an evacuated flask and heated at a constant rate until 15.0 kJ/mol of heat has been added to the sample. Graph the temperature of the sample that would be observed during this experiment. 100 90- ? 80- 70 60 50 40 30 20 10 10 15 heat added (kJ/mol) temperature (*C)
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