-8 -10 Time (minutes) Using the cooling curve (shown above), identify the freezing temperature for the solution. 6°C 0°C -8°C -8.5°C -9°C ( Prev 5 of 14 Next >

Chemistry
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### Temperature versus Time Analysis

#### Graph: Temperature vs. Time

The graph presented shows the relationship between temperature (in °C) and time (in minutes). The y-axis represents the temperature, scaling from -10°C to 24°C. The x-axis represents time, ranging from 0 to 18 minutes.

**Description:**

1. At the start (0 minutes), the temperature is approximately 24°C.
2. As time progresses, the temperature decreases steadily.
3. Around 8 minutes, the temperature stabilizes at approximately -8°C, indicating a phase where the temperature remains constant.
4. After around 14 minutes, the temperature begins to decrease again, indicating the freezing process might be completing.

#### Question: 
**Using the cooling curve (shown above), identify the freezing temperature for the solution.**

- 6°C
- 0°C
- -8°C
- -8.5°C
- -9°C

Based on the cooling curve shown in the graph, the correct answer is:

- **-8°C**

The freezing point is identified by the horizontal portion of the curve where the temperature remains constant, indicating the phase change from liquid to solid.

#### Navigation:

- **Previous** (Slide 5 of 14)
- **Next**

---

This content provides an intermediate-level understanding of phase changes, specifically focusing on how to read a cooling curve and determine the freezing point of a solution.
Transcribed Image Text:### Temperature versus Time Analysis #### Graph: Temperature vs. Time The graph presented shows the relationship between temperature (in °C) and time (in minutes). The y-axis represents the temperature, scaling from -10°C to 24°C. The x-axis represents time, ranging from 0 to 18 minutes. **Description:** 1. At the start (0 minutes), the temperature is approximately 24°C. 2. As time progresses, the temperature decreases steadily. 3. Around 8 minutes, the temperature stabilizes at approximately -8°C, indicating a phase where the temperature remains constant. 4. After around 14 minutes, the temperature begins to decrease again, indicating the freezing process might be completing. #### Question: **Using the cooling curve (shown above), identify the freezing temperature for the solution.** - 6°C - 0°C - -8°C - -8.5°C - -9°C Based on the cooling curve shown in the graph, the correct answer is: - **-8°C** The freezing point is identified by the horizontal portion of the curve where the temperature remains constant, indicating the phase change from liquid to solid. #### Navigation: - **Previous** (Slide 5 of 14) - **Next** --- This content provides an intermediate-level understanding of phase changes, specifically focusing on how to read a cooling curve and determine the freezing point of a solution.
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