Phase Change and Heat of Fusion

Phase Change and Heat of Fusion

Assessment

Interactive Video

Physics

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

Mr. Mott explains how to calculate the heat of fusion of ice using a phase change diagram. The video covers the lab setup, data collection, and calculations for heat absorbed and released. It concludes with calculating the heat of fusion and discussing the percent difference from the accepted value.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary focus of the phase change diagram discussed in the video?

The specific heat capacity of water

The heat of fusion and phase changes

The heat of vaporization

The boiling point of water

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

At what temperature does ice start to melt according to the phase change diagram?

32 degrees Fahrenheit

0 degrees Celsius

273 Kelvin

100 degrees Celsius

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the initial temperature of the hot water used in the lab experiment?

3 degrees Celsius

62 degrees Celsius

100 degrees Celsius

0 degrees Celsius

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the final temperature of the water after adding ice in the experiment?

100 degrees Celsius

0 degrees Celsius

3 degrees Celsius

62 degrees Celsius

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much heat was released by the hot water during the experiment?

24,662 joules

4,662 joules

46,620 joules

2,466 joules

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the calculated heat of fusion of ice from the experiment?

400 joules per gram

300 joules per gram

354 joules per gram

334 joules per gram

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why can't the formula Q = MCΔT be used during phase changes?

Because the heat of vaporization is needed

Because the specific heat is unknown

Because there is no change in temperature

Because the mass changes

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