Gas molecule five-direction diffusion rate comparison demonstrator

Abstract

The invention discloses a gas molecule five-direction diffusion rate comparison demonstrator, which is characterized by comprising a bracket (1), wherein the bracket (1) is provided with a transversemortar (2), the transverse mortar (2) is a cylinder, a cavity is drilled in the center of the front end of the transverse mortar (2), a small hole is drilled in each of five directions including vertical upward and downward directions, a one-side horizontal direction, a one-side 45-degree oblique upward direction and a one-side 45-degree oblique downward direction at a position close to the bottomof the cavity, and the small holes are communicated with the cavity; a large hole is drilled in the perpendicular direction at the rear end of the transverse mortar (2), and the bracket (1) is inserted into the large hole for fixation; a catheter (3) with a rubber stopper at the outer end is inserted in each of the five small holes of the transverse mortar (2); and a phial (4) containing concentrated ammonia water or other test supplies is inserted into the cavity of the transverse mortar (2). The gas molecule five-direction diffusion rate comparison demonstrator can enable students to measure rates of gas diffusion in longitudinal, transverse and oblique directions for comparison visually, so as to explore the influence of gravity and the like on directed diffusion rates of gases in theatmosphere.

Description

technical field [0001] The invention belongs to the technical field of teaching aids, and in particular relates to a device for comparing the diffusion rate of gas molecules in five directions. Background technique [0002] In the current "Compulsory Education Textbook Physics Ninth Grade Complete Volume 1", the "gas diffusion experiment" allows students to realize that the movement of particles of matter exists objectively. So whether the movement speed of molecules in all directions is the same, whether it is affected by gravity, there is no experimental content in the book, and no conclusion is given. For this reason, the inventor designed a simple experimental device to visually measure the vertical, horizontal, and oblique velocity comparisons of gas diffusion, so as to explore the influence of gravity on the directional gas diffusion rate in the atmosphere. Contents of the invention [0003] The purpose of the present invention is to provide a gas molecule five-way ...

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Problems solved by technology

So whether the movement speed of molecules in all directions is the same, whether it is affected by gravity, there is no experimental content in the book, and no conclusion is given

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