The warming air would expand and the tyre pressure would go up.
Because the air inside the tire is under pressure. Gas always flows from a region of higher pressure to a region of lower pressure. As the pressure inside the tire is greater than the pressure outside, the air always comes out of the bicycle tyre.
If inside and outside same pressure that means there is no pressure. The added pressure is what blows the tire up like a balloon and holds the weight of the car up.
Air leaves a tire when the tire valve is open due to the pressure. The pressure outside of the tire is lower than the pressure inside the tire.
NO - there isn't a pressure sensor inside the spare
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The tire will have a recommended psi printed on the tire, it is best to follow this recommendation. Check inside driver door for tire pressure information. Tire lists max pressure at max load. Mfg will set tire presure on sticker inside driver door.
Tyre pressure is caused by the air particles inside the tyre
they hit the walls/side of the tyre and that builds pressure
inside drivers door there is a label that states correct tire pressure.
The tire will have a recommended psi printed on the tire, it is best to follow this recommendation. Check inside driver door for tire pressure information. Tire lists max pressure at max load. Mfg will set tire presure on sticker inside driver door.
look on the tire itself and it will give you the tire pressure or look on the inside door panel of the drivers side it will be there also
air pressure helps on the inside of a tire but on the outside it does not usually help. as an observation if you get a flat tire and put air inside the tire it gives pressure on the inside were the hole is but if it is on the outside and lets say a pipe rolls down the highway and it hits your tire air pressure helps it make a hole in it or make it flat.