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Physics

Questions tagged [gas]

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This tag is for questions relating to "gas", one of the four fundamental states of matter (the others being solid, liquid, and plasma). Gases follow certain laws known as the gas laws. These laws tell us about the behavior of gases i.e., the values and relations of temperature, pressure and volume etc.

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13votes
2answers
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Is it theoretically possible for there to be such a thing as a "gas moon" as opposed to a rocky one?Do any laws or models specifically prohibit the formation of gaseous moons?
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1answer
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My question is that in real gas can potential energy decrease or increase kinetic energy and change the temperature by changing kinetic energy.
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I was just thinking that, if the all supplied heat goes to increase only rotational kinetic energy (Which is not possible), will temperature increase? I want to strong my concepts and just want to ...
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In kinetic theory, the temperature of a gas is traditionally defined through its translational kinetic energy, using the relation:$$K.E. = \frac{3}{2} kT \ .$$This definition appears to imply, that ...
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I understand that water in vacuum chambers presents a challenge because it adsorbs to the surfaces and takes much longer to pump out than other gasses. But if one doesn't care about how long it will ...
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While working my way through the Jhan Kalda handouts on thermodynamics i encountered the following problemConsider a balloon which has thick rigid walls and from which all the air has been pumped ...
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As per the Kinetic Theory of Gases (KTG), gas molecules are postulated to undergo only elastic collisions, and thus the net kinetic energy of the system cannot change. Since internal energy is defined ...
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1answer
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I'm reading the chapter on interstellar medium in Carroll & Ostlie. In particular the section on star formation. In it, they separate the collapse of the interstellar medium into the region where ...
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1answer
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I have a chamber with a gas at an initial pressure of $P_0$. A hole of diameter $d$ is opened in the container, into another chamber with a constantly working vacuum pump, such that $d > \lambda$ (...
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https://tvtropes.org/Characters/JuxtaposeIzuku's Quirk is "Minor Banishment", allowing him to banish up to 10 grams of anything he's touching from existence. However, he can only do so if ...
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Let's please imagine a liquid solvent with gases dissolved in it (for example soda with CO2 dissolved in it) in a closed expandable container with no gaseous phase (completely filled with the liquid)....
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1answer
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I need help in that one please. I'm currently doing my master thesis, long story short, im hand calculating the temperature drop of hydrogen modeling it as VdW after a certain adiabatic expansion, I ...
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1vote
1answer
128views

To achieve supersonic flow $M>1$ we have to have a converging-diverging nozzle (like de Laval nozzle).Is it still possible to achieve supersonic flow $M>1$ only with a diverging nozzle, ...
4votes
1answer
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I am looking at how phase transition is described in R. H. Swendsen's book "An Introduction to Statistical Mechanics and Thermodynamics". This is not homework, just trying to tidy up for ...
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1answer
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So I've recently encountered this problem where in a specific point of time during the pre-ops of the experiment you put the vapor that is going to raise up the temperature of the capillary tube to ...

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