physical
Chemical change
No. Nothing changes in its chemical nature.
Gasoline combusts with air to produce CO2, CO, water, and others (depending on purity of gasoline). This releases heat energy, which is transfered to work energy by the expanding of the gas products, pushing the piston in the combustion cylinder. This in turn rotates the drive shaft, moving the car. All combustion reactions are forms of chemical change. Think of a campfire; the wood burns producing smoke, heat, and ash. What's left from the fire cannot be physically turned back into wood, and is therefore a chemical change. This holds true for all reactions, combustion and otherwise. In contrast, ripping a piece of paper or stretching a piece of puddy is a physical change because the ripped paper is still paper and the stretched puddy is still puddy.
i have no idea... uhhh. im looking for the same thing...
entropy is decreasing, so negative
physical
Inflating a tire with air is a physical change because it is not changing the tire chemically. It is only changing the physical appearance of the tire.
Its a physical property.
Chemical change
physical change. the rubber is still rubber and the air is still air, so NO chemical change has occured
physical change.. cooler air in the tire becomes denser, lowering overall pressure. The chemistry of the air in the tire does not change.
When a tire is properly inflated it will be level to the ground. Over inflated and the middle of the tire has the most pressure on the ground. Under inflated and the sides of the tire have the most pressure on the ground.
The same as a tire that has not been inflated.
Yes it is a physical change
no its a physical change
Any tire inflated with a gas (air or nitrogen ) is a pneumatic tire.
Any tire inflated with a gas (air or nitrogen ) is a pneumatic tire.