Giving example discuss the expansion in solid liquid and gases
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Solid Expansion upon heating - Brass ball and hoop experiment. My chemistry teacher did an experiment where he put a brass ball through a hoop designed so it could only just fit through it. He then heated the brass ball under a bunsen flame and tried to put it through... the brass ball had expanded due to an increase the energy level of the atoms.
Expansion of gas - Gas likes to fill the space of the room it's in. Heating the gas in a balloon tends to make the particles gain energy. They move faster hitting the sides of the container and appearing to expand ----> Air Balloon (although note it rises for a slightly different reason).
Expansion of liquid - A difficult one. I've looked up on a resource and tried to coin it down for you. Under pressure, heating a liquid (in a sealed container) will cause it to expand. Better though, I would go with the ice explained below.
"There is another way to make a balloon smaller other than pushing it underwater. You can put it in the freezer. When you heat up a gas, the molecules that the gas is made up of move faster. In our balloon example, this increase in molecular motion causes the molecules to hit the sides of the balloon more often, and with more force, making the balloon expand. Cooling the gas would have the inverse effect, making the balloon smaller." ~ Found this on a website listed below.
Hence why "a full scuba tank, if left in the sun, will heat up. This causes the molecules in the air in the tank to move faster. Unlike the balloon which would expand, the tank is a rigid container that will not expand. This increase in motion then raises the pressure inside the tank. In fact, a full scuba tank will gain about 5-6 psi for every degree of temperature increase."
Heat liquid nitrogen under pressure = explosion.
Where would this section go....
Ever tried freezing a bottle of water. If you filled the water to the top before you put the cap on and freeze it, you will notice that it increases in size may even break the bottle.
Expansion of gas - Gas likes to fill the space of the room it's in. Heating the gas in a balloon tends to make the particles gain energy. They move faster hitting the sides of the container and appearing to expand ----> Air Balloon (although note it rises for a slightly different reason).
Expansion of liquid - A difficult one. I've looked up on a resource and tried to coin it down for you. Under pressure, heating a liquid (in a sealed container) will cause it to expand. Better though, I would go with the ice explained below.
"There is another way to make a balloon smaller other than pushing it underwater. You can put it in the freezer. When you heat up a gas, the molecules that the gas is made up of move faster. In our balloon example, this increase in molecular motion causes the molecules to hit the sides of the balloon more often, and with more force, making the balloon expand. Cooling the gas would have the inverse effect, making the balloon smaller." ~ Found this on a website listed below.
Hence why "a full scuba tank, if left in the sun, will heat up. This causes the molecules in the air in the tank to move faster. Unlike the balloon which would expand, the tank is a rigid container that will not expand. This increase in motion then raises the pressure inside the tank. In fact, a full scuba tank will gain about 5-6 psi for every degree of temperature increase."
Heat liquid nitrogen under pressure = explosion.
Where would this section go....
Ever tried freezing a bottle of water. If you filled the water to the top before you put the cap on and freeze it, you will notice that it increases in size may even break the bottle.
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