Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [gas]

The tag has no usage guidance.

7
votes
3answers
1k views

What is the most important source of natural gas? coal, oil or other?

By heat and pressure both coal and oil can produce gas. But what is the most important substance for gas? Is there a relation to the amounts of marine organism (sea life) wich died and the amount of ...
0
votes
0answers
9 views

What leads to formation of a nonassociative gas reservoir?

Why in some cases natural gas occurs in association with oil (associated gas) and in others there is no oil (nonassociated gas)? Is it because of the type of the rock? Or is it the pressure/...
5
votes
1answer
99 views

Does Xenon really covalently bond to oxygen within quartz?

Wikipedia's Xenon; occurrence and production says Within the Solar System, the nucleon fraction of xenon is $1.56 \times 10^{-8}$, for an abundance of approximately one part in 630 thousand of the ...
5
votes
2answers
162 views

Are plastics a carbon sink and how much carbon is released to the atmosphere making them?

If we were to make some technical jump to renewable fuel and renewable energy, would making plastics from oil release green house gasses, how much, and would plastic function as a carbon sink? Sorry ...
2
votes
2answers
590 views

How do I convert kg·kg⁻¹ to ppbV (parts per billion volume)?

I am using the CAMS model output data to figure out the ground level ozone at a particular place. It is given in mass mixing ratio, and I want to convert to parts per billion volume mixing ratio (...
4
votes
1answer
425 views

How high is too high for hydrogen to rise?

If hydrogen is the lightest gas known, would it rise making the outermost part of the atmosphere mostly hydrogen? Images to associate with your answer would be much appreciated. Thanks
13
votes
2answers
671 views

Why air do not suffer density stratification of its gaseous components?

The different gases that make up the air have different densities. So, naively, one would expect the heavier gasses to pool in the lower atmosphere and the light ones at the top. I asked myself this ...
0
votes
1answer
39 views

How much gasoline in cubic meters is used per day? [closed]

Many of us drive a car, trucks get driven each day and many other machines use gasoline as well. This gets pumped out of our earth continuously, making earth bit by bit more hallow. Not a real ...
4
votes
0answers
111 views

How do we calculate an average temperature for the air above a specific point from weather data?

I'm doing a school project on cosmic rays (using data from the HiSPARC database), and we need to be able to calculate the average temperature of the atmosphere above specific cities on a specific date ...
6
votes
4answers
684 views

Why is Helium only found in wells mixed with natural gas?

All commercially available helium comes from natural gas wells? Is it theoretically possible to have a pure helium well? Helium is produced by the radioactive decay of primordial uranium and thorium....
6
votes
5answers
422 views

Are there gases from the Earth useful to generate electricity besides “natural gas”?

Natural gas: ...is a naturally occurring hydrocarbon gas mixture consisting primarily of methane, but commonly including varying amounts of other higher alkanes, and sometimes a small percentage of ...
5
votes
1answer
144 views

What is a “show” in petroleum geology?

Is a show when naturally ocurring oil seeps out of a fracture on the surface? Or is it when engineers fracture rocks in order to extract oil?
3
votes
1answer
179 views

How can oil can escape from a shale source rock into a reservoir rock?

How can oil can escape from a shale source rock into a reservoir rock if the shale itself is impermeable?
7
votes
1answer
382 views

What “g” would be needed to keep helium on Earth?

I know that helium is a very light and rare gas on Earth because Earths gravity is not strong enough to keep it. Instead, helium and hydrogen are rising through the atmosphere and escape into outer ...
5
votes
3answers
427 views

Gases that are nearly transparent to solar AND thermal radiation?

I've been curious about if there are any gases in the atmosphere that are nearly transparent to both solar and thermal radiation. $CO_2$ for instance is nearly transparent to solar radiation but is ...
5
votes
2answers
569 views

What would happen if magma flows into a very large oil deposit?

If there were an earthquake that somehow cause a crack in the earth and allowed a significant amount of magma to flow into a very large oil deposit. With that high amount of explosive energy that ...
7
votes
1answer
114 views

Is there a 'standard size' for volcanic eruptions in terms of gas output?

We saw recently the Iceland volcano Eyjafjallajökull produced significant gaseous output that impacted the flight paths of several planes. When we look at volcanic gas components, we see they ...
3
votes
1answer
84 views

What is meant by Global-warming Potential (GWP)?

I was under the impression GWP (global-warming potential) is the measure of a gas' impact on global warming, in comparison with CO2. E.g. methane has a GWP of 86 over 20 years - Wikipedia Comparing ...
6
votes
1answer
93 views

What is the ratio of infra-red light absorbed by green house gases?

I know that some gases like CO2, N2O and CH4 absorb infra red radiation. What is the proportion or percentage of radiation absorbed by CO2 among all the gases?
13
votes
2answers
46k views

Are clouds a gas, liquid, and/or solid?

Are clouds a solid, liquid, or gas? I have been looking online and they are often described ambiguously as a "mass". For instance, from NASA: A cloud is a mass of water drops or ice crystals ...
12
votes
2answers
455 views

What's it like inside a natural gas cavern on Earth?

I suppose natural gas underground caverns on Earth have substantial volume and gas is in gaseous form there. As such I wonder how it would look like inside such cavern (with artificial light of ...
3
votes
1answer
105 views

The differences in gases produced by asteroids impacting crystalline and sedimentary rocks

A second question inspired from How Long Will Life Last On Earth, The Manicouagan crater in Canada is one of the largest impact crater on Earth. It was created 215 million years ago, but its ...
5
votes
1answer
1k views

Has a reduction in car use ever had an effect on the ozone layer?

Has there ever been an incident in the U.S. where because of high gas prices people have driven their cars a lot less than usual for, say, many months, and after appropriate measurements it was ...
10
votes
1answer
278 views

Regarding various types of atmospheric pollution

Does all the car pollution (from about 150 million cars at least in the U.S. and a lot more in all of North America and the rest of the world) all the smoke-stack pollution of various factories and ...
12
votes
1answer
103 views

How much methane clathrates are buried in continental deposits?

Methane clathrates are solid clathrate compound (more specifically, a clathrate hydrate) in which a large amount of methane is trapped within a crystal structure of water, forming a solid similar ...
14
votes
1answer
334 views

How did helium deposits form?

I always wondered, because helium gas is so lightweight, how did it get into the deposits like the ones that people tap? Is it formed underground, or was it trapped?
14
votes
1answer
514 views

Temperature as a function of luminosity and greenhouse gas concentrations

The evidence seems clear that there is an interrelationship between solar luminosity, greenhouse gas concentrations, and temperature. Has temperature as a function of luminosity and greenhouse gas ...
13
votes
1answer
481 views

What is caesium-137 used for in fracking?

Caesium-137 is used in the fracking process. What is it used for?