【Daily Question】Theoretical Foundation 2020.12.30
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Multiple-choice question: The question is shown in the image ( ). ----- The internet connection is poor; the image of the question from yesterday couldn’t be uploaded, so it’s being sent again today. Answer: D Hint: An additional reward will be given to those who can explain the solution process; the answer can be seen in the response
Gas radiation exhibits strong selectivity for wavelength, showing radiation and absorption properties only within certain spectral bands； For different gases, the ability for radiation heat transfer varies; only polyatomic gases or asymmetric diatomic gases possess radiative properties ； Gas radiation occurs throughout the gas container and is affected by reflection and absorption by the container walls. Additionally, gas radiation is related to the internal properties of the gas, while the energy transmitted through scattering and diffraction by gas molecules is negligible compared to the amount of heat exchanged via radiation