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Diva Dollar Question

Diva Dollar Question. Why does a large pot of water take so long to boil? (Hint: Look at the front of the ESRT’s). Aim: How are the phase changes of water shown on a graph?. Topic: Water Cycle & Climate Main Idea: Heating Curve of Water.

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Diva Dollar Question

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  1. Diva Dollar Question • Why does a large pot of water take so long to boil? (Hint: Look at the front of the ESRT’s)

  2. Aim: How are the phase changes of water shown on a graph? • Topic: Water Cycle & Climate • Main Idea: Heating Curve of Water

  3. 1) Which heats up faster: a metal fork or a wooden fork? • A metal fork heats up faster because it has a lower specific heat (amt of heat needed to raise the temp.).

  4. 2) What is latent heat? • This is heat energy absorbed or released during a phase change.

  5. 3) What is a “phase change”? • Melting= solid to liquid= energy absorbed • Evaporation= liquid to gas= energy absorbed • Condensation= gas to liquid= energy released • Freezing= liquid to solid= energy released

  6. What is a heating curve?

  7. 4) What do the flat lines on a heating curve represent? • These represent when energy is being absorbed or released and water is changing phase.

  8. 5) What do the slanted lines on a heating curve represent? • These represent when water is in a phase (solid, liquid or gas).

  9. Diva Dollar Question • Why does the temperature go up just before it rains but not before it snows?

  10. energy released gas evaporation(condensation) (2260 J/g) liquid melting(freezing) (334 J/g) solid energy absorbed

  11. Summary:Answer the questions at the bottom of the notes.

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