CN201233674Y - Demonstrator of gas expansion for doing work - Google Patents
Demonstrator of gas expansion for doing work Download PDFInfo
- Publication number
- CN201233674Y CN201233674Y CNU2008200645849U CN200820064584U CN201233674Y CN 201233674 Y CN201233674 Y CN 201233674Y CN U2008200645849 U CNU2008200645849 U CN U2008200645849U CN 200820064584 U CN200820064584 U CN 200820064584U CN 201233674 Y CN201233674 Y CN 201233674Y
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- glass tube
- demonstrator
- utility
- marble
- model
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Abstract
The utility model relates to an instrument for demonstrating the process of causing gas to expand and do work by heating the gas. The instrument is a totally enclosed linked vessel, and consists of a U-shaped glass tube (2) and two transparent, hollow marbles (1 and 1') connected with two ends of the U-shaped glass tube. The demonstration instrument contains a certain amount of colored liquid (3) and air. When the utility model is utilized for demonstrating the process in which the gas expands and does work, all that is needed to is to hold one of the two transparent, marbles with one hand, and the heating of the marble depends on the heat of the palm; after being heated, the air within the marble held by the hand starts to expand, thereby pushing the liquid in the vessel to move towards the other marble; and obvious phenomenon of upward injection or rising by the liquid in the other marble can be observed. The utility model has the advantages of simple structure, convenient use, safety and reliability, and can demonstrate the principle of the tendency of gas after being heated to expand and do work.
Description
Technical field:
The utility model relates to a kind of experiment equipment, a kind of specifically demonstration instrument that when gases are heated, they expand does work.
Background technology:
In the basic physics teaching material, when the principle of doing work to when gases are heated, they expand describes and explains, often use spirit lamp to adding the test tube heating of stopper, make invisible spectro water boiling, the experiment that the water vapor that produces is gone out the test tube stopper is demonstrated, this experiment can be demonstrated out the principle of gas expansion for doing work, but the experiment equipment that needs is many, operates relative complex and certain danger is arranged.
The utility model content:
Many in order to solve existing apparatus for demonstrating experiment equipment, operation relative complex and the problem of certain danger is arranged, the utility model provides a kind of succinct, light, easy to operate and safe demonstrator of gas expansion for doing work.
The utility model is achieved in that
A kind of demonstrator of gas expansion for doing work is a totally enclosed connection container, is made up of " U " shape glass tube and two clear hollow glass beads being connected " U " shape glass tube two ends, contains a certain amount of colored liquid and air in the demonstrator.
Further scheme is: the volume of described colored liquid is more than or equal to the volume of U-shaped glass tube and less than the volume sum of two clear hollow glass beads with " U " shape glass tube.
The utility model is when the demonstration gas expansion for doing work, only need with device according to the clear glass ball last, " U " shape glass tube under the direction placement, make that colored liquid is full of " U " shape glass tube at least in the device, and keep the liquid level of colored liquid in two clear glass balls contour.Then, grasp one of them clear glass ball, rely on the heat of palm it to be heated the air expanded by heating in the spheroid that then is held in the hand, the liquid that promotes in the container moves to another ball, just can clearly observe the phenomenon that the liquid in the container upwards sprays or goes up in another ball.The utility model is simple in structure, esy to use, safe and reliable, can demonstrate the principle of gas expansion for doing work intuitively.
Description of drawings:
Fig. 1 is the utility model structural representation;
Synoptic diagram when Fig. 2 uses for the utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, a kind of demonstrator of gas expansion for doing work, described demonstrator is a totally enclosed connection container, is made up of a U-shaped glass tube 2 and two clear glass balls 1,1 ' of being connected U-shaped glass tube two ends, contains a certain amount of colored liquid 3 and air in the demonstrator.
As shown in Figure 2, when the demonstration gas expansion for doing work, with demonstrator according to the clear glass ball last, " U " shape glass tube under direction place, make that colored liquid 3 is full of U2 shape glass tube at least in the device, and keep the liquid level of colored liquid 3 in two clear glass balls 1,1 ' contour.Then, grasp one of them clear glass ball 1 ', rely on the heat of palm that it is heated, air expanded by heating in the clear glass ball 1 ' that then is held in the hand, the liquid that promotes in the container moves to clear glass ball 1, just can observe the phenomenon that the liquid in the container upwards sprays or goes up in clear glass ball 1 significantly.
Claims (2)
1, demonstrator of gas expansion for doing work, it is a totally enclosed connection container, form by " U " shape glass tube (2) and two clear hollow glass beads (1,1 ') of being connected " U " shape glass tube two ends, contain a certain amount of colored liquid (3) and air in the demonstrator.
2, demonstrator of gas expansion for doing work according to claim 1 is characterized in that: the volume of described colored liquid (3) is more than or equal to the volume of " U " shape glass tube (2) and less than the volume sum of two clear hollow glass beads (1,1 ') with " U " shape glass tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200645849U CN201233674Y (en) | 2008-08-04 | 2008-08-04 | Demonstrator of gas expansion for doing work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200645849U CN201233674Y (en) | 2008-08-04 | 2008-08-04 | Demonstrator of gas expansion for doing work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201233674Y true CN201233674Y (en) | 2009-05-06 |
Family
ID=40620058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200645849U Expired - Fee Related CN201233674Y (en) | 2008-08-04 | 2008-08-04 | Demonstrator of gas expansion for doing work |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201233674Y (en) |
-
2008
- 2008-08-04 CN CNU2008200645849U patent/CN201233674Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20110804 |