The plot below shows the distribution of molecular velocities for two gases (A and B) at the same temperature.  Which of the following statements about these gases is TRUE?  Recall that a "particle" can be an atom or a molecule. In a horrible sentence explain why you chose your answer. A. The particles in gas A have a lower average kinetic energy (KEavg) than the particles in gas B B. Gas A has a higher molar mass than gas B C. Gas A diffuses/effuses more slowly than gas B   -Both B and C  -All of A, B, and C  -B only  -C only  -A only

Chemistry
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The plot below shows the distribution of molecular velocities for two gases (A and B) at the same temperature.  Which of the following statements about these gases is TRUE?  Recall that a "particle" can be an atom or a molecule. In a horrible sentence explain why you chose your answer.

A. The particles in gas A have a lower average kinetic energy (KEavg) than the particles in gas B

B. Gas A has a higher molar mass than gas B

C. Gas A diffuses/effuses more slowly than gas B

 
-Both B and C 
-All of A, B, and C 
-B only 
-C only 
-A only

 

The graph displayed is a distribution of molecular velocities, illustrating the fraction of molecules at various velocities in a system. 

### Description:

- **Axes:**
  - The x-axis represents "Molecular Velocity (m/s)," ranging from 0 to 1200 meters per second.
  - The y-axis denotes the "Fraction of Molecules," indicating the proportion of molecules at each velocity.

- **Curves:**
  - There are two curves on the graph, colored blue and yellow. These curves likely represent the distribution of molecular velocities at different temperatures or conditions.
  - **Curve A (Yellow):** Peaks earlier than Curve B, indicating that a larger fraction of molecules have higher velocities.
  - **Curve B (Blue):** Appears to peak later, suggesting a broader range of velocities with a higher fraction of slower-moving molecules.

- **Annotations:**
  - An arrow labeled "A" points to the peak of the yellow curve.
  - An arrow labeled "B" points to the middle portion of the blue curve, indicating significant features or intersections.

### Analysis:

The graph visualizes how molecular velocity distributions might change with varying parameters, such as temperature. Typically, a lower peak at higher velocities (B) might represent a cooler sample, while a higher peak at lower velocities (A) could signify a warmer sample.
Transcribed Image Text:The graph displayed is a distribution of molecular velocities, illustrating the fraction of molecules at various velocities in a system. ### Description: - **Axes:** - The x-axis represents "Molecular Velocity (m/s)," ranging from 0 to 1200 meters per second. - The y-axis denotes the "Fraction of Molecules," indicating the proportion of molecules at each velocity. - **Curves:** - There are two curves on the graph, colored blue and yellow. These curves likely represent the distribution of molecular velocities at different temperatures or conditions. - **Curve A (Yellow):** Peaks earlier than Curve B, indicating that a larger fraction of molecules have higher velocities. - **Curve B (Blue):** Appears to peak later, suggesting a broader range of velocities with a higher fraction of slower-moving molecules. - **Annotations:** - An arrow labeled "A" points to the peak of the yellow curve. - An arrow labeled "B" points to the middle portion of the blue curve, indicating significant features or intersections. ### Analysis: The graph visualizes how molecular velocity distributions might change with varying parameters, such as temperature. Typically, a lower peak at higher velocities (B) might represent a cooler sample, while a higher peak at lower velocities (A) could signify a warmer sample.
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