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Experimental device and method for exploring influence of temperature on saturation of solution

An experimental device and experimental method technology, applied in the field of experimental teaching equipment, can solve problems such as the inability to explore the phenomenon of hot ice at the same time, and the inability of students/teachers to obtain changes in water temperature in real time.

Pending Publication Date: 2019-11-12
ZHUJI LANLE ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, students / teachers cannot obtain real-time changes in water temperature during the above experiment; and the above scheme can only explore one experiment, and cannot simultaneously explore the phenomenon of hot ice

Method used

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  • Experimental device and method for exploring influence of temperature on saturation of solution
  • Experimental device and method for exploring influence of temperature on saturation of solution
  • Experimental device and method for exploring influence of temperature on saturation of solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 with figure 2 As shown, this embodiment discloses an experimental device for exploring the influence of temperature on solution saturation, including a support frame 3, which includes a placement platform 31 and a clamping unit 32, and an iron frame above the support frame 3. The stand 11 and the alcohol lamp 12 positioned below the iron stand 11 have a beaker 14 filled with an aqueous solution 13 on the iron stand 11, and a test tube 15 and a temperature sensor 21 are clamped on the clamping unit 32 so that the A test tube 15 and a temperature sensor 21 are located in the beaker 14, the test tube 15 contains a saturated solution 16 with excess solute, the temperature sensor 21 is connected to a microprocessor 22, and the microprocessor 22 is connected to a display module twenty three. Those skilled in the art should know that both the microprocessor 11 and the display module 23 are powered by a power supply circuit, which will not be repeated here. ...

Embodiment 2

[0047] Such as Figure 7 As shown, this embodiment is similar to Embodiment 1, the difference is that the elastic structure 7 of this embodiment includes a clip 71 connected in the first clamping piece 51 or the second clamping piece 52, and there may be no Spring 72, clamp piece 71 adopts elastic material, such as rubber material or composite material etc. are made, like this, when clamp piece 71 has compression force to test tube 15, clamp piece can be inclined and deformed because of reaction force, thereby The contact area between the clip 71 and the test tube 15 and the data transmission line 212 is increased.

Embodiment 3

[0049] This implementation discloses an experimental method based on the experimental device in Embodiment 1, including:

[0050] A. Explore the effect of temperature on solution saturation and prepare various experimental equipment;

[0051] Pour a part of the saturated sodium acetate solution with excess solute into the test tube 15, put the test tube 15 into the beaker 14 filled with the aqueous solution 13, light the alcohol lamp 12 to heat the test tube 15 by using the water bath method;

[0052] During the heating process, the temperature of the aqueous solution 13 is detected in real time by the temperature sensor 21 , and the temperature data is recorded by the microprocessor 22 and displayed on the display module 23 .

[0053] The microprocessor 22 makes the temperature data of the aqueous solution 13 into a time-varying temperature curve according to the time axis, and the display content on the display module 23 includes the temperature curve and the current tempera...

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Abstract

The invention provides an experimental device and method for exploring the influence of the temperature on the saturation of a solution. The device comprises a supporting frame; the supporting frame comprises a placing platform and a clamping unit; an iron frame table and an alcohol lamp located below the iron frame table are arranged above the supporting frame; a beaker containing the aqueous solution is arranged on the iron frame table; a test tube and a temperature sensor are clamped on the clamping unit to be located in the beaker; the saturated solution with excess solutes is contained inthe test tube; the temperature sensor is connected to a microprocessor; and the microprocessor is connected with a display module. According to the experimental device comprising the temperature sensor, the microprocessor and the display module, an experimental process can be subjected to data processing, so that students can know the current temperature of the solution in real time, the studentshave relatively accurate concepts for temperature changes, and the experimental teaching effect is enhanced.

Description

technical field [0001] The invention belongs to the technical field of experimental teaching equipment, and in particular relates to an experimental device and method for exploring the influence of temperature on solution saturation. Background technique [0002] Many scientific laws will be encountered in the process of science teaching in junior high schools. Teachers usually let students learn related scientific laws through dictation, field experiments or video experiments. For example, we all know that as the temperature changes, the state of the solute in the solution will change. For a saturated solution with excess solute, heating the solution can slowly dissolve the excess solute, that is, the way of heating the solution can increase the solute in the solution. Solubility in solution. In the current teaching, teachers usually use different concentrations of salt water for experiments. For example, prepare at least two beakers with 100ml of aqueous solution at 25 de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/00
CPCG09B23/00
Inventor 黄书畅
Owner ZHUJI LANLE ELECTRONICS TECH CO LTD
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