Temperature is really just the amount of kinetic energy in the molecules of a substance. If you add more energy by heating the substance then the molecules dash about faster and faster. This increases the pressure if the substance is constrained, like gas in a jar or in a bomb.
Mass does not change with temperature
You cannot. If you know the volume, temperature and pressure of a pencil, you will be no closer to knowing its mass!
Temperature within an air mass varies due to the amount of solar radiation it has been exposed to, while humidity depends on the evaporation and condensation of water vapor. Pressure within an air mass is influenced by the weight of the air above it, which can change due to factors like temperature and altitude.
because a kilo doesn't change no matter the temperature or pressure. Mass is always the same.
No. Mass is the amount of matter in an object. Pressure does not affect the amount of matter.Uless you have anhydrous ammonia and have a contained vessel at 32psi,that drops to 0 psi suddenly.Then you will have an in crease in volume but still have the same amount of matter.
- modifying the temperature- modifying the pressure- modifying the volume
The density of a medium refers to it's mass per volume. This can also be defined as mass divided by volume. Pressure and temperature can change the density of a medium.
Gases are highly compressible. So they don't have definite volume and pressure. As volume is reduced for a given mass pressure increases. Also as temperature changes then at constant volume pressure changes considerably. Same way for a constant pressure temperature change brings a change in the volume. Moreover gasses do not have a free surface.
The density of an object is determined by its mass and volume. If the mass of the object increases and its volume stays the same, the density will increase. If the volume of the object increases and the mass stays the same, the density will decrease.
Gases are highly compressible. So they don't have definite volume and pressure. As volume is reduced for a given mass pressure increases. Also as temperature changes then at constant volume pressure changes considerably. Same way for a constant pressure temperature change brings a change in the volume. Moreover gasses do not have a free surface.
because the volume of the gas is dependent upon the temperature and pressure. This is also important in the identification of the molecular mass of an unknown gaseous element.
Air pressure and temperature do not change in the same way with altitude. As altitude increases, air pressure decreases because there is less air mass above pushing down. This leads to a decrease in temperature with altitude at a rate of about 2 degrees Celsius per 1,000 feet due to the decrease in pressure causing the air to expand and cool.