Hydrogen gas, because molecules these are the lightest and smallest of all gasses
water
it spreads out more
when the gas is in a high temperature
"difusion"
"difusion"
A gas is a state of matter that spreads in all directions, filling the available space of its container. Gas particles have high kinetic energy that allows them to move freely and independently of one another.
It expands and spreads out, no matter is created.
It spreads evenly throughout its containers/surroundings.
Gas spreads out to fill any type of container
The random motion of the gas molecules allows them to diffuse throughout the space available to them.
natural gas
When a gas diffuses, it merely spreads out through the volume available to it. It will accordingly become less intense.