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wasia
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Where could one find a table of Helium and/or Hydrogen escape rates through various materials? What is the Physical mechanism: is it tunneling only or other things contribute as well?
Thanks!
Thanks!
The physical mechanism behind the escape rates of helium and hydrogen is known as thermal escape. This means that the particles are able to escape from the atmosphere due to their high thermal energy, which overcomes the gravitational pull of the planet.
The escape rates of helium and hydrogen differ due to their different atomic masses. Helium, being a heavier gas, has a lower escape rate compared to hydrogen. This means that helium is less likely to escape from the atmosphere compared to hydrogen.
The escape rates of helium and hydrogen are affected by several factors, including the temperature and composition of the atmosphere, the strength of the planet's gravity, and the size and mass of the planet.
The escape rates of helium and hydrogen play a crucial role in determining the composition and stability of a planet's atmosphere. If the escape rates are high, it can lead to a loss of these gases from the atmosphere, resulting in a thinner atmosphere and potentially affecting the planet's habitability.
Scientists use a variety of techniques to measure the escape rates of helium and hydrogen, including satellite observations, laboratory experiments, and computer simulations. These methods allow for a better understanding of the physical mechanisms and factors influencing the escape rates of these gases.