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.
Air pressure decreases with increase of height.
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 altitude increases, air pressure decreases. This is because the weight of the air above becomes less as altitude increases, leading to lower air pressure. At higher altitudes, there are fewer air molecules pushing down on a given area, resulting in lower pressure.
Air temperature typically decreases with height in the troposphere due to the decreasing influence of Earth's surface heating. Conversely, air pressure decreases with height because the weight of the air above diminishes as altitude increases. While temperature changes can vary depending on weather conditions and atmospheric layers, the decline in air pressure with height is a consistent physical principle. As a result, temperature gradients can vary more widely than the relatively uniform decrease in air pressure.
Air pressure at sea level is considered high because the weight of the air above exert pressure on the surface. This pressure decreases as altitude increases due to the decrease in the weight of the air column above.
If the force of gravity increases, weight will increase because weight is the measure of the force of gravity on an object. However, mass remains constant as it is a measure of the amount of matter in an object and does not change with gravity.
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.
As you drive up a mountain, air pressure decreases because atmospheric pressure decreases with higher altitude. As you drive down the mountain, air pressure increases because the weight of the air above you increases as you descend to lower altitudes.
Yes. In order to increase the temperature of a gas (or any matter), we must add heat energy. According to Einstein's famous E=MC2, if we add energy to a body we also increase its mass (and its weight). If we work the numbers for E=MC2, we find that the weight change is so tiny that we cannot detect it (under ordinary circumstances). So most physicists believe that temperature affects the weight of matter.
As you descend into the ocean, temperature typically decreases due to the lack of sunlight penetration and heat exchange with the cold deep water. Pressure, on the other hand, increases with depth due to the weight of the water above pushing down.
The relationship between weight and molarity in a solution is that weight is directly proportional to molarity. This means that as the molarity of a solution increases, the weight of the solute in the solution also increases. Conversely, as the molarity decreases, the weight of the solute in the solution decreases.
Air pressure decreases with increase of height.
As the weight of a car increases, the miles per gallon decreases.
Your weight is determined by the force of gravity acting on you, so it will change if the acceleration due to gravity changes. If the acceleration due to gravity increases, your weight will increase, and if it decreases, your weight will decrease.
Gas mileage decreases as the weight of the car increases and vice versa.
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.