GCSE Chemistry Revision "The Greenhouse Effect"

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In this video, we look at the Greenhouse Effect. We explore how this takes place in terms of the wavelengths of the radiation involved.
This video is based on the AQA spec. If you are following a different exam board then you should check your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.
Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (creativecommon...)
Source: incompetech.com...
Artist: incompetech.com/

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Me

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Unfortunately

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good luck today you mean?

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Here from 2021 COVID year :(

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in my exam could i be asked to describe the whole process of the greenhouse effect??

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im just abit confused on how the long wavelength radiation is absorbed but the energy is trapped in the atmosphere. can someone help plss

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The long wavelength radiation causes the bonds in the carbon dioxide and methane molecules to vibrate with more energy. This energy is effectively trapped in the atmosphere.

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so the long wavelength radiation is not reflected back at the earth by the atmosphere its absorbed by the atmosphere and therefore heats it? PLZ REPLY

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last minutes revisionnnnnn gang

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I had seen a similar video on this about the molecules in our environment but that was confusing. This really gave me a great understanding of greenhouse gases as it was explained simply.

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2:14 wavelength* :)

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OhItzElyas ?

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hey could someone help me out, I'm kinda confused,, what absorbs the long wavelength radiation released by the earth, the greenhouse gas molecules in the atmosphere??

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The simplest answer is: there is no greenhouse gas. All gases are that same, both nitrogen and carbon dioxide. Proven!

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Good luck to my 2021 class

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does the short wavelength radiation heat up the earth's surface or is it the long wavelength radiation reflected back towards the earth by the greenhouse gases

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It's the short wavelength radiation first and the long wavelength second.

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here before chemistry paper 11/06/2019

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why is there so much nitrogen

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It isn't removed via photosynthesis so it just kind of sits there. We have billions of years worth of nitrogen just floating around.

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2020 lads

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Before exams gang

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3 hours to revise lmao