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 30. °C boiling point 90. °C enthalpy of vaporization enthalpy of fusion 8.00 kJ/mol 29.00 kJ/mol 1.70 g/cm (solid) 1.50 g/mL (liquid) -1 •mol -1 (solid) density 35. J-K heat capacity 45. J-K (liquid) "mol 55. J·K mol (vapor)

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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
30. °C
boiling point
90. °C
enthalpy of
vaporization
enthalpy of fusion
8.00 kJ/mol
29.00 kJ/mol
1.70 g/cm (solid)
1.50 g/mL (liquid)
density
35. J·K
1-
•mol
(solid)
heat capacity
45. J'K
(liquid)
"mol
55. J·K
•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.
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 30. °C boiling point 90. °C enthalpy of vaporization enthalpy of fusion 8.00 kJ/mol 29.00 kJ/mol 1.70 g/cm (solid) 1.50 g/mL (liquid) density 35. J·K 1- •mol (solid) heat capacity 45. J'K (liquid) "mol 55. J·K •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.
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