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6. Fill in the number of calories at each step below for changing the phase of 1 gram of 0 .C ice to 100 "C steam. 1g ice phase change 1g water temp rise 1g water phase change Ig steam Heat needed = cal cal + cal cal 7. One gram of steam at 100 "C condenses, and the water cools to 22 "C a. How much heat is released when the steam condenses? b. How much heat is released when the water cools from 100 C to 22 "C? c. How much heat is released altogether? 8. In a household radiator 1000 g of steam at 100 C condenses, and the water cools to 90 "C a. How much heat is released when the steam condenses? b. How much heat is released when the water cools from 100 C to 90 "C? c. How much heat is released altogether? 9. Why is it difficult to brew tea on the top of a high mountain? 10. When a cloud forms in the atmosphere (phase change gas to liquid) is heat released or absorbed