If you have 100 kilos of oil in a sealed can and you cool it or warm it, the weight of the oil will not change. However the volume of the oil in the can will change.
Asking "what is the density of a gas" is just like asking "what is the density of a liquid or solid". This entirely depends on what gas it is and only in the case of gases, what temperature and pressure it is at too.
It has got to do with the size of the atoms and their weight. Gases are simple molecules with weak forces between molecules All the particles move around with a certain amount of energy. This energy is what we often count as heat. When we reduce the temperature of a gas, the particles move slower and slower, and get closer together until they start to touch at which point the gas will start to condense This can further be helped by pressure.
It decreases
Density increases as you go deeper into the earth.
When you go higher into the air, air pressure starts to decrease and when you are at sea level, air pressure very high. When the temperature is really high, air molecules start bouncing around rapidly and that creates high air pressure. This pressure is enough to blow up a balloon on it's own. When the temperature is really cold, air molecules contract and forms low pressure. This can actually shrink a balloon without the air going out of the balloon in a matter of minutes. No answer for humidity yet.
Actually it's not weight we are dealing with here, it is actually density. So what happens is when temperature increases, the density decreases and volume increases or vice versa if the temperature decreases, the density increases and the volume decreases.
The force of gravity (or acceleration) affects weight but not mass. An object's mass does not change - it is the physical composition of the object. Weight increases as the force of gravity increases and decreases in the same way.
Mass does not change with gravity. Weight increases on BIGGER planets and decreases on smaller planets.
Yes. As acceleration due to gravity increases so does the object's weight. The reverse is true when gravity decreases. Mass, however, does NOT change with gravity.
When a person dies it increases their actual body weight.
the weight will decrease
As the weight of a car increases, the miles per gallon decreases.
Gas mileage decreases as the weight of the car increases and vice versa.
it increases: for the atomic number indicates the number of protons and neutrons in the atom; these are the weight carrying particles
belt size is directly proportional to weight loss, i.e if the belt size increases then the weight also increases, its an indidcation that you are putting on weight, if the belt size decreases, it indicates that you are losing your weight.
Asking "what is the density of a gas" is just like asking "what is the density of a liquid or solid". This entirely depends on what gas it is and only in the case of gases, what temperature and pressure it is at too.
As the temperature increases:The solubility of a solid in a liquid increasesThe solubility of a liquid in a liquid increasesThe solubility of a gas in a liquid decreases(The solubility of liquids and solids increase as temperature increases, while the solubility of gases decreases as temperature increases.)