A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady rate and the temperature recorded as time passes. Here is a graph of the results: temperature (°C) 90. 70.. 50.- 30. 10. - 10. 10. What is the boiling point of X ? heat added (kJ/mol) Use this graph to answer the following questions: What phase (physical state) of X would you expect to find in the flask after 29 kJ/mol of heat has been added? °C 40. (check all that apply) solid O liquid Ogas 50.

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady rate and the temperature recorded as time passes. Here is a
graph of the results:
temperature (°C)
90.
70.
50.-
30.
10.
- 10.
10.
What is the boiling point of X ?
heat added (kJ/mol)
Use this graph to answer the following questions:
What phase (physical state) of X would
you expect to find in the flask after
29 kJ/mol of heat has been added?
°C
40.
(check all that apply)
solid
O liquid
Ogas
50.
Transcribed Image Text:A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady rate and the temperature recorded as time passes. Here is a graph of the results: temperature (°C) 90. 70. 50.- 30. 10. - 10. 10. What is the boiling point of X ? heat added (kJ/mol) Use this graph to answer the following questions: What phase (physical state) of X would you expect to find in the flask after 29 kJ/mol of heat has been added? °C 40. (check all that apply) solid O liquid Ogas 50.
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