The increase of pressure of a given gas is usually a result of a change in the temperature of the gas. An increase in temperature creates a corresponding increase in pressure.
Yes it may be a chemical change but it can also be a physical change. An example of gas forming in a physical change is when you boil a liquid that liquid evaporates and gas is formed!
Yes, because the chemical composition of the gas particles does not change.
yes
Physical, because the gas is still the same gas, just under pressure Some gasses may undergo spontaneous chemical reactions under very high heat and/or pressure. For example ozone under high pressure will fairly rapidly decay into oxygen gas.
By increasing the density of a gas its air pressure will subsequently increase.
Increasing the volume of a gas the pressure and density decreases.
Nig, its because the pressure is what makes the gas, if there ain't no pressure, ain't no gas.
Any of the following: increasing the amount of gas; increasing the temperature; reducing the volume.
By increasing pressure
Physical change.
Physical, because the gas is still the same gas, just under pressure Some gasses may undergo spontaneous chemical reactions under very high heat and/or pressure. For example ozone under high pressure will fairly rapidly decay into oxygen gas.
By increasing the density of a gas its air pressure will subsequently increase.
By increasing the density of a gas its air pressure will subsequently increase.
If pressure increases, the volume will decrease P = 1/V or PV = constant
Increased pressure is a physical change, not a chemical change - even if the increase in pressure is itself the result of a chemical process.
Charles' law
Gas under pressure is a physical change not a chemical change because the gas is not being affected chemically (atoms are not bonding to other atoms and etc.). Pressure only forces the gas particles to be closer together, possibly reverting them to liquids if the temperature is low enough.
Increasing the volume of a gas the pressure and density decreases.
Increasing the volume of a gas the pressure and density decreases.
Increasing the volume of a gas the pressure and density decreases.