Is pumping up a tire a chemical change?

Answer 1

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.

Answer 2

Pumping gasoline is not a chemical change. A chemical change always results in the formation of a new chemical substance.

Answer 3

No. You are not in any way altering the chemical makeup of either the air or the baloon.

Answer 4

No, moving gasoline from one storage tank (underneath the gas pumps at the gas station) to another storage tank (your car's gas tank) is neither a chemical change nor a physical change.

Answer 5

Burning gasoline is a chemical change, an oxidation reaction.

Answer 6

Transfer of a liquid is not a change.

Answer 7

Pumping is a physical process.

Answer 8

Physical