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Which of the gases in the graph below has the smallest molar mass?

Which of the gases in the graph below has the smallest molar mass?

Chemistry
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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Which of the gases in the graph below has the smallest molar mass?

The graph represents the distribution of molecular speeds across different temperatures, illustrating the Maxwell-Boltzmann distribution for gas particles. ### Axes: - **X-axis (Molecular Speed):** Represents the speed of the gas particles, ranging from 0 to 2500 units. - **Y-axis (Relative Number of Particles):** Indicates the relative number of particles corresponding to each molecular speed. ### Curves: - **Curve A:** Shows a broader distribution of molecular speeds, indicating a higher temperature where particles move more quickly on average. - **Curve B, C, D:** With increasing peaks and narrowing widths, these curves represent lower temperatures sequentially. As temperature decreases, particles have lower average speeds and a narrower distribution range. ### Observation: - At higher temperatures (Curve A), molecules have a wider range of speeds and a smaller peak, demonstrating increased kinetic energy. - At lower temperatures (Curves B, C, D), the peak becomes more pronounced, corresponding to a smaller range of molecular speeds and lower kinetic energy. This graph illustrates how temperature affects the distribution of molecular speeds in a gaseous substance, adhering to the principles of kinetic molecular theory.
Transcribed Image Text:The graph represents the distribution of molecular speeds across different temperatures, illustrating the Maxwell-Boltzmann distribution for gas particles. ### Axes: - **X-axis (Molecular Speed):** Represents the speed of the gas particles, ranging from 0 to 2500 units. - **Y-axis (Relative Number of Particles):** Indicates the relative number of particles corresponding to each molecular speed. ### Curves: - **Curve A:** Shows a broader distribution of molecular speeds, indicating a higher temperature where particles move more quickly on average. - **Curve B, C, D:** With increasing peaks and narrowing widths, these curves represent lower temperatures sequentially. As temperature decreases, particles have lower average speeds and a narrower distribution range. ### Observation: - At higher temperatures (Curve A), molecules have a wider range of speeds and a smaller peak, demonstrating increased kinetic energy. - At lower temperatures (Curves B, C, D), the peak becomes more pronounced, corresponding to a smaller range of molecular speeds and lower kinetic energy. This graph illustrates how temperature affects the distribution of molecular speeds in a gaseous substance, adhering to the principles of kinetic molecular theory.
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