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Chemistry 14 Online
lifewmylilweeb:

I need help on the second part of this question

lifewmylilweeb:

oreo123:

Is this the part you need help on

lifewmylilweeb:

yes

oreo123:

ok

lifewmylilweeb:

@rainb0wgutzz

lifewmylilweeb:

@timmyspu

lifewmylilweeb:

@fel213

Fel213:

The greenhouse effect is the process by the temperature of surface of earth increases because of earth's atmosphere. Mechanism: Sun emits a broad band of visible light spanning from red to blue colour. In addition to this, it emits UV and IR radiation. Infrared radiations have wavelength longer than IR, while UV ray have wavelength shorter than visible light. Each of these radiations are received on the earth's surface. On receiving radiation, part of it is absorbed by earth and remaining is reflected back. Generally, light of longer wavelength (IR) is reflected to larger extend as compared to shorter wavelength. Due to this, air present in atmosphere gets heated up. It must be noted that, molecule like CO2, which is present in air absorbs light from both direct and reflected fraction of light. This phenomenon is referred as green house effect. Molecule which absorb long wavelength light (IR) are present in atmosphere due to human activities. Hence, green house effect is often considered to arise because of human activities of altering the composition of air.

lifewmylilweeb:

I need to find how the greenhouse affect of caused on a molecular level

lifewmylilweeb:

effect*

lifewmylilweeb:

?

Fel213:

Greenhouse gases are more complex than other gas molecules in the atmosphere, with a structure that can absorb heat. They radiate the heat back to the Earth's surface, to another greenhouse gas molecule, or out to space.

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