Section 4: First, use the ppt or your textbook to add to complete your Venn diagram. Then, read the first two pages (88-89) of the document under 'Homework Documents'. After reading, answer the following in your notebook:
1) Use your own words or draw a diagram (or both) to explain why phase changes occur.
2) Why do different substances melt at different temperatures?
3) What is boiling?
4) What is heat of vaporization?
5) Based on context clues, how would you define heat of fusion in your own words?
6) Why heat of vaporization greater than heat of fusion in pure substances?
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