Does gravity have any (even a little) effect on gas molecules? If so, why do gas go up?
102758
Yes gravity has effect on gas molecules.\n\nNewton's Law of Gravitation governs the attraction between earth and the gas molecules. It is similar to solid or liquid molecules. However the density (mass per unit volume) incase of gases is very low so the attractive force is not easily felt.\n\nGoing up or down of gas molecules is governed by two other factors.\n1. The kinetic energy of gas molecules is so high that the gas molecules easily move in all directions, but to a certain limit thus the gas molecules also move up.\n\n2. When there are mixtures of different substances the heavy molecules are more affected by the gravity and so they remain close to the earth and the light molecules settle above. This applies to all states of matter e.g. wood flots on water.
991569
Yes this is an important topic.\nthe amount is tiny really.\nwhy not try to blow up a balloon and never burst it then all th gas will be traped and not effect the environment\nx x x
324067
No. Gravity has to do with the mass of objects--you have some too.
747351
It's not heat that rises, it's hot substances. Heat itself has no mass and does not care where the gravity is pointing. However, the density of substances will vary with temperature. Most substances have a decrease in density as the temperature of that substance rises.\n\nThis is why it appears as if heat rises from a fire or your stove. The heat you feel is actually hot air that rises due to the force caused by bouyancy. This bouyancy is a result of the fact that warm air is less dense than cold air.
685823
Strictly speaking, it is not true.  CO2, being heavier than air, WILL accumulate on ground level, if the air is perfectly still for a long enough period of time.  Or if the CO2 gas is colder than the air.  \n\nKeep in mind, though, that since the molecular weights of CO and of air are pretty close, the relative rate of diffusion of CO in air will be fairly slow.  That means if you have something making CO and putting it into the air, the worst place to be is right next to it.  Especially if the air is still.
613443
Niuchemist is mostly right and deserves the vote, but there is one correction I would make-heavier molecules don't necessarily have less "kinetic energy", they move more slowly-it is the speed of movement that is the critical thing, not the kinetic energy, which is a product of speed *and* mass.
915872
Gravity is defined in a new term.  That is the latest report\n    of the atomic relativities of the quasar versus the quantum\n    in an isolated directive.  Defined by the mineral interactions.\n    What?  Gravity has the interactive quantities added to the\n    average force of one planet attracts to another Plus the ionic\n     pentanmeters(depends on the substance with conditions).\n    So gravity is present in all materials if left in free space, or put\n     into orbits, or put on a plane.  This last set is the theoretic\n     gravity of space infinitives to the nth degree, showing that all\n     materials have the origin of gravity values as established at\n     the desk of the elements chart, and its properties.  The flight\n     of planets is a true measure of gravities, showing such things\n     as anti-gravity points like in a space capsule.  The interaction\n      really never out drives the elements chart standard.
844159
True \nPressure is caused by the collision of the atoms which make up a gas with the wall of a container\n\nFalse\nAtoms move about more rapidly in a solid than a gas\n\nTrue \nThe speading of a gas to fill a container is called diffusion\n\nTrue \nWhen a gas is heated, its atoms have more kinetic energy
891200
Gas, air, the atmosphere - it's made up of molecules of gas, each of which has mass.  That mass is attracted to the Earth by gravity.  Light as air is, it still has mass that it captured by Earth's gravity.  When an asteroid  comes along and smacks into the Earth, water vaper and air are throw far out into space, several hundreds of miles (the atmosphere is only about 100 miles high).  However, it all comes back due to the force of gravity.\n\nHowever, Earth's gravity is not strong enough to hold the lightest elements, hydrogen and helium.  That is the reason Earth is a small rocky planet and not a gas giant like Jupiter or Saturn, or even the sun.  Get big enough and you can attract even the lightest elements - which adds mass - which attracts more gas - which adds more mass - etc etc etc.\n\nThat's why your idea, unfortunately, won't work.  Gravity.
1127230
No, it's a nice idea though. As the balloon rises the pressure outside it will drop causing the gas inside the balloon to expand until eventually the balloon will pop. Sorry to burst your bubble as it where; I love the idea of space being filled with these multi coloured balloons though :))
768543
when we are burning any thing generally the body releases some gases and especially carbon di oxide and carbon monoxide.\nand in some systems( organic) sooty nad non sooty flames are there.if we observe flame with black smoke it is sooty and if the flame is without that black smoke it is non sooty.\nso,the gases which are released causes the flame to go up.\nas it contains hot gases which are with low density ,they will go up.
300802
if the point is big the gravity don't effect it much but if it is small gravity will effect it i forgot the whole explanation though \n\nyou could try this link
78721
NO it doesn't - if you're referring only to space - at zero gravity that is! \n\nThe initial launching rocket boosters are abandoned once you enter space, and the fuel is filled only to the suffice the requirement of the rocket launch - enough to push it into space for the rocket to thereon move autonomously.
402851
Thermal convection involves the transfer of heat away from something warm by action of the air in contact with it.  This occurs because the air near the object is heated by direct contact with it.  As a gas, the air molecules move faster when heated and drive the nearby molecules farther apart.  This makes the number of molecules in any particular volume become less that the more distant, cooler air.  Thus the density of the heated air becomes less, making it buoyant compared with the cooler air.  Thus, gravity makes the warm air rise away from the warm object, carrying away some of its heat.  The process continues as new, cooler air then comes into contact with the warm object.
949671
Does it have to have air in it?? Hydrogen gas is less dense than air, so that would make it lighter.
501359
yeaaaaah\n\nit's "expand and rise"\nthe energy (heat) supplied to it causes the individual molecules to have more energy and because of it, they expand further, and rise since density is lowered and volume is increased
59519
Its obviously D).  All that gas is holding us down.   (just kidding, its caused by the fact that Earth is massive enough to cause a significant gravity well in space-time)