Black Body Radiation

[Rajshree 1F]

How in depth do we need to know black body radiation? Lavelle said during lecture just the concept however there is an equation attached to this topic so now I am worried.

[ALee_1J]

Black Body Radiation won't be covered in depth, I believe. Dr. Lavelle mentioned that it was more of a physics topic and that he only briefly mentioned it to make a point about how only certain frequencies of light are absorbed by electrons and not all at the same time. If an object or substance absorbed all frequencies of light (ie. UV, visible, gamma, etc.), it would be a "black body".

Like I know it's not an accurate way to describe it, but the concept of black bodies (to me) is similar to a black hole (in space) but for light.

[505598869]

Lavelle said that since it is more a physics topic than a chemistry one, we won't discuss it in depth.

[Lauren Strickland 1B]

I believe black body radiation will not be covered in depth as professor Lavelle said it is a topic that relates more to physics.

[Jarrett Sung 3B]

Like those above have said, Dr. Lavelle said in the lecture that we're not going very in-depth on black body radiation, but he used the black body as an example of what something would be like if it could absorb all frequencies of light. If you end up taking physics, it might be an important topic.

[Brandon McClelland3L]

Mr. Lavelle said that we don't really need to know what it is, and he just used it as an example of something without the lines on the spectrum.

[Algernon Jackson 2l]

The professor told us he will not focus on black body radiation.

[Caelin Brenninkmeijer 1G]

I think Dr. Lavelle mentioned it in the lectures more as an example rather than for us to know the concept. Since it's more a physics topic, we won't be covering it in gen chem.

[Rohit Srinivas 2D]

We don't need to know this but something interesting to know is that T is temperature, C is the same C we have been using, and lambda is wavelength. This is much more advanced that we would be learning for 14a.

[Jack Kettering 3D]

I don’t think we need to know anything about black body radiation, I believe the discussion with regards to black body radiation was just extraneous material.

[ColmConnolly3D]

Just as a fun aside, the closest we have come to making a black body material is a set of vertically aligned carbon nanotubes. These allow EM radiation in which then can bounce around in the tubes and get absorbed by the carbon at near-perfect levels. Their unique structure allowed a Japanese team in 2009 to absorb 98-99% of the radiation between untraviolet and far-infared spectra. I have included a reference to the study if you are interested in further reading!

Mizuno, K., Ishii, J., Kishida, H., Hayamizu, Y., Yasuda, S., Futaba, D. N., Yumura, M., & Hata, K. (2009). A black body absorber from vertically aligned single-walled carbon nanotubes. Proceedings of the National Academy of Sciences of the United States of America, 106(15), 6044–6047. https://doi.org/10.1073/pnas.0900155106

[alexandralopez 3F]

Hi, i dont think we need to know black body radiation since the prof mentioned it wasn't really a chem topic in lecture and wasn't going to discuss it

[Jacob Schwarz-Discussion 3I]

Hey,
I don't think you need to worry about this too much. Lavelle does cover Black Body Radiation yet he does explicitly acknowledge that we don't need to be too specific on the memorization of everything regarding this concept. I think it is important to remember that this type of radiation is about an object or substance that absorbs all frequencies of light (ie. UV, visible, gamma, etc.). However, just understanding the surface level concept is likely enough

[Zoe Staggs 3B]

I think we just need to know about Black Body Radiation in relation to the Stefan Boltzmann Law, Ultraviolet Catastrophe, Photoelectric Effect, etc.