Question: Question 19 A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady rate and the

Question 19 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: 180. 160. 140 temperature (C) 120.. 100 10 . 30. 50. heat added (kJ/mol) Use this graph to answer the following questions: What is the boiling point of X ? (check all that apply) What phase (physical state) of X would O solid you expect to find in the flask after 2 KJ/mol of heat has been added? O liquid O gas X

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