1. When liquid water freezes, is heat released to the surroundings or absorbed from the surroundings? 2. Why does it take so much more energy to boil 10 grams of liquid water than to melt 10 grams of...

1. When liquid water freezes, is heat released to the surroundings or absorbed from the surroundings?

2. Why does it take so much more energy to boil 10 grams of liquid water than to melt 10 grams of ice?

3. The leftmost diagram below shows the moving particles of a gas in a rigid container. Which of the three boxes on the right—(a), (b), or (c)—best represents this material when heat is added?