Wednesday, November 2, 2011

Freezing and Melting Water Lab Post

Question: How do freezing and melting points differ?

Hypothesis: The temperature of water will be colder when it is in the ice because to become ice it needs less energy

Freezing Point: -6.058
Melting Point: 0.07935

Questions about the lab:

1) The water temperature during freezing went downward during the 10 minute stirring period, then when we left it still for 5 minutes the temperature went up but was still in the negative.

2) In the freezing period the freezing point was -6.1 C then the melting point was 0.1 C

3) The freezing was a lot colder than melting for obvious reasons.

4a) The beginning the kinetic energy increased at the end it decreased

4b) The kinetic energy was constant throughout

4c) The kinetic energy increased.

4d) It remained constant!

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