Heating & Cooling Curves Review

Heating & Cooling Curves Review

Assessment

Flashcard

Chemistry

9th - 12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the melting point of a substance?

Back

The melting point is the temperature at which a solid becomes a liquid at a given pressure.

2.

FLASHCARD QUESTION

Front

What is the freezing point of a substance?

Back

The freezing point is the temperature at which a liquid becomes a solid at a given pressure.

3.

FLASHCARD QUESTION

Front

Describe the process occurring between letters D and E on a heating curve.

Back

The process occurring between letters D and E is evaporation, where a liquid turns into a gas.

4.

FLASHCARD QUESTION

Front

In which regions of a heating curve does the temperature increase?

Back

Temperature increases in regions 1, 3, and 5 of the heating curve.

5.

FLASHCARD QUESTION

Front

What happens to temperature during a phase change?

Back

During a phase change, the temperature remains constant while the substance transitions from one state to another.

6.

FLASHCARD QUESTION

Front

What is the significance of the plateau in a heating curve?

Back

The plateau indicates a phase change where the temperature remains constant as the substance absorbs or releases heat.

7.

FLASHCARD QUESTION

Front

How does the heating curve of NaCl(s) differ from that of water?

Back

The heating curve of NaCl(s) has a higher melting point (801°C) compared to water (0°C) due to stronger ionic bonds.

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