if chart B represents the cooling of a 14.0 g of a substance at a constant rate, determine the amount of energy lost during the cooling of the liquid phase
if chart B represents the cooling of a 14.0 g of a substance at a constant rate, determine the amount of energy lost during the cooling of the liquid phase
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
if chart B represents the cooling of a 14.0 g of a substance at a constant rate, determine the amount of energy lost during the cooling of the liquid phase

Transcribed Image Text:### Chart B: Phase Change Diagram
#### Description:
This graph represents the cooling curve of a substance, detailing its phase transitions from gas to liquid and finally to solid.
#### Axes:
- **Y-axis (Vertical):** Temperature in degrees Celsius, ranging from -30°C to 150°C.
- **X-axis (Horizontal):** Heat lost (in Joules), shown in increments presumably indicating time intervals.
#### Key Points and Phases:
- **A to B**: The substance is in the gas phase. Cooling begins at point A and continues to point B, representing the gas state.
- **B (Gas Boiling Point)**: The gas begins to condense into a liquid at this point. This is the gas boiling point, identified on the graph with an arrow labeled "gas boiling point."
- **B to C**: The transition from gas to liquid; the temperature remains constant while the substance condenses.
- **C (Liquid Boiling Point)**: The temperature at which the substance is fully converted into a liquid. It is labeled on the graph with an arrow labeled "liquid boiling point."
- **C to D**: The substance is entirely in the liquid state. Cooling continues with a drop in temperature toward D.
- **D to E**: The line indicates a phase change from liquid to solid, where the temperature stays constant until the entire liquid solidifies.
- **E (Solid State)**: The substance has completely solidified, and cooling progresses with a decrease in temperature from E to F.
- **F (Solid State Cool)**: The substance remains in the solid state and continues to lose heat, represented by the descent from point E to F.
This diagram effectively illustrates the relationship between heat loss and temperature change during the phase transitions of a substance from gas to solid.
Expert Solution

Step 1
During cooling, the substance loses energy (in the form of heat) and the temperature of the system decreases.
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