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AP Physics 2
9.1 Kinetic Theory of Temperature and Pressure
BeginnerMCQConceptual16.2k
A simple line drawing showing a sealed rectangular box with thick black outlines representing a rigid container. Inside the box, fifteen small filled black circles representing gas molecules are distributed randomly. Each circle has a thin straight arrow attached to it, pointing in a random direction with various arrow lengths ranging from short to medium. Below the container, a small stylized flame shape is drawn with a horizontal arrow labeled Q pointing toward the bottom of the box. To the left of the container stands a vertical rectangle representing a thermometer, with a shaded fluid column rising to a line labeled T_1. No other labels, lines, text, or axes appear.
Gas in a rigid container heated from initial temperature T_1.
A rigid, sealed container holds a fixed number of ideal gas molecules at an initial temperature \(T_1\). Heat is added to the gas so that its temperature increases to \(T_2\). Which of the following correctly describes the change in the most probable speed of the molecules and the change in the peak height of the Maxwell-Boltzmann speed distribution curve?

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