Design an experiment to demonstrate that carbon dioxide can produce the greenhouse effect30

(1) The burning match is placed at the mouth of the bottle, and the extinguishing proves that the CO2 is full, (2) the internal temperature of the CO2 gradually becomes higher, and finally it is stable, and the image is uphill, and finally stable; The internal temperature of the air begins to rise slowly, the image is an S line, and finally it is stable, (3) The internal air pressure is unstable, and the tightness should be noted. Explanation: (1) CO2 does not support combustion, (2) the air contains water vapor, which is liquefied by heat to absorb heat energy, and (3) the gas is thermally expanded and contracted, and the water vapor is liquefied by heat. That's it.

1.Hold a burning strip close to the mouth of the cylinder, and if the strip goes out, it proves that the carbon dioxide collection is full.

2。I don't think I can write this question without a table...

3.There was no control group, so I didn't know exactly what the harm of carbon dioxide was. A control test should be done with a gas collection cylinder with only air, and the temperature curve of the bottle should be observed.

1, and the oxygen concentration is about.

Flammable properties. 3. Contact area.

1. Carbon dioxide gas in the air is a major greenhouse gas, producing a greenhouse effect. Therefore, regardless of the amount of carbon dioxide gas, it will have a greenhouse effect. It is also necessary for the formation of suitable meteorological conditions on the Earth's surface.

2. Due to the increase in the content of carbon dioxide gas in the air, it will "intensify the greenhouse effect", which is a global environmental problem. Therefore, it is necessary to control the emission of carbon dioxide gas now, which is a built-in environmental protection measure.

3. According to the above, "the greenhouse effect is caused by the increase in the amount of carbon dioxide gas in the air. This statement is wrong.

Experimental analysis: To prove that a chemical reaction does occur when carbon dioxide passes into water, it is first necessary to know what is the product of the reaction between carbon dioxide and water, and carbon dioxide reacts with water to form carbonic acid, so it is only necessary to check whether carbonic acid exists.

Principle 1: Carbonic acid is acidic and will turn red when exposed to blue litmus paper:

Experiment (1):

in a dry gas collection cylinder.

Bottles used in laboratories to collect gases).

A bottle of carbon dioxide gas is collected, and a piece of blue litmus test paper moistened with water is placed into the gas collection bottle, and if the test paper turns red, it proves that the carbon dioxide has indeed reacted with water.

carbonic acid is generated);

Principle 2: Carbonic acid reacts with lime water (active ingredient calcium hydroxide) to produce a white precipitate calcium carbonate, which makes the solution turbid

Experiment (2):

Carbon dioxide gas is passed into clear lime water if the solution becomes cloudy (white precipitates are formed).

then it proves that carbon dioxide does react with water.

carbonic acid is generated);

Note: Bold font is mandatory.

1. Add purple litmus to the solution to turn red.

H2CO3 was generated

Second, connect the small bulb with a wire to energize it.

When the light is on, it means that ions have been generated.

for H+ and CO32-

Carbon dioxide gas has the function of heat absorption and heat insulation. As a result of its increase in the atmosphere, it forms an invisible glass cover that prevents the heat radiated by the sun to the Earth from being dissipated into outer space, and as a result, the Earth's surface heats up. As a result, carbon dioxide is also known as a greenhouse gas.

Other greenhouse gases are emitted by human activities and nature, which are: chlorofluorocarbons (CFCs), methane, low-altitude ozone, and nitrogen oxide gases, plankton in the oceans and forests on land, especially tropical rainforests, that can absorb large amounts of carbon dioxide on Earth.

In order to reduce the excess carbon dioxide in the atmosphere, on the one hand, people need to use electricity as sparingly as possible (because electricity is generated by burning coal, and driving fewer cars). On the other hand, protect forests and oceans, such as deforestation and pollution of the oceans to protect plankton. We can also protect green plants by planting trees, reducing the use of disposable chopsticks, saving paper (wood for papermaking, not trampling lawns, etc.) so that they absorb more carbon dioxide to help slow down the greenhouse effect.

Carbon dioxide absorbs infrared radiation and prevents the Earth's heat from being reflected back into space, creating the greenhouse effect.

Space heat radiates into the earth, carbon dioxide does not stop?

Carbon dioxide causes the greenhouse effect.

Solar radiation.

is full-band, and the energy is concentrated in the wavelength teaching short range.

Terrestrial radiation is long-wave.

Mainly, in the absorption range of CO2.

In fact, if the solar radiation is absorbed when it comes in, it also increases the temperature.