If you put oxygen on neptune and then let the methane on fire what would happen?

Question

dont answer it would be to cold to start a fire or thats impoosable or something.

Answer 1

Well, that would have to be one incredibly large quantity of oxygen--more than we have on earth -- to be able to support any significant fire.  Neptune's atmosphere is about 80% hydrogen, and 1.5% methane.

But if we could come up with enough oxygen, and could get ignition, the methane would all be oxidized to carbon dioxide and water.  The hydrogen, too, would oxidize to form water, which would then freeze into the biggest snowstorm ever imagined.

But what a silly thing to do -- take all the oxygen from earth to make a giant firestorm on Neptune.

Answer 2

There would be a huge fire ball in space! How would that happen you ask? The temperature on Neptune is extremely hot which would cause the two gases to ignite. Neptune would practically be a second sun which would destroy most or all of Earth. Methane gas is very flammable and burns very fast, super high performance race cars with a whole lot of horse power use Methane gas.

Answer 3

youd make a carbon water planet pefect for plants.

Answer 4

seeming how neptune is made of flamible gases if you were to put the right amound of oxygen then say bye bye to neptune, you would burn off all the gasses. one less planet to worry about.

Answer 5

The oxygen would be consumed in a big fire.  It's unlikely that you're going to get enough oxygen to put a dent in Neptune's methane.  That would be an enough mass to have it's own gravitational effects.

The old joke is that the density of Saturn is less than that of water.  So if you can float Saturn in a big bath tub, though it will leave a ring.  -- of course a bath tube of water that big would self-gravitate into a sphere.  You'd have a water planet.

Back to Neptune.  So the gravity effects could even out perform the chemical fire effects.

Consider this:  If you drop a marble from a relative stationary spot straight down onto a neutron star, the energy released when it strikes the surface is larger than if the marble's mass were converted entirely into energy (via e = m c^2).

Answer 6

Well, "Chicken Head" that's a chicken head kind of question.  First I feel that you would need a most huge amount of oxygen in order to do that, where ya' gonna' get all that oxygen?  Nothin' like answering a question with a question.  "Whatever", cause the whole thing is just for the sake of argument, huh?  All this oxygen would blow away in the clouds of Neptune anyway, cause the clouds are blowing and circulating the planet at about 700 mph, that's really fast!  

Well, I'll go one better, on Neptune there's not enough methane to actually start a huge enough fire, so why bother to even transport all that oxygen there, Oh yes, I forgot we're talking about starting a fire!  Well, there is hydrogen and helium in greater abundance.  Well, then, let's say, for the sake of argument, that a fire did start---well so what-Neptune is so very far out in the solar system that a planet on fire would actually do nothing, but like you said, just freeze up!  Cause it is supremely cold out there!

Oh, yep, I forgot, there would then be an extremely frigid core, about the size of Earth, floating in space, that would probably gain more gas and ice from exploding comets from within the Keiper belt, which Neptune is really close to.