examples of the gas laws?

Question

* Using the relationship between pressure and temperature what would be a concrete example of this relationship

*using the relationship between pressure volume and pressure what would be a concrete example of this relationship

*using the relationship between moles of gas and pressure what would be a concrete example of this relationship


the concrete examples must be everyday examples.

Answer 1

Uncap a bottle of soda, relieving the pressure, and watch how the cooling gas above the soda causes water vapor to condense into a cloud of fog. (Other responders have mentioned a pressure cooker. This is not a good example, as the pressure increase results largely from turning water into steam, not from heating a gas (i.e., it's not an example of a gas law). You would not build up nearly as much pressure by heating a pressure cooker filled with air. And, come to think of it, this isn't an everyday example, as pressure cookers are not very common these days ... although people who live at high altitudes may use them.)

Squeeze on a (small) balloon to force it into a smaller area, and notice how it pushes back against your hand as the pressure of gas inside increases.

Put air into your car's tires and check how the pressure increases.

Answer 2

1.) Cook food in a pressure cooker. The volume of the pot is constant, so if you increase the temperature, the pressure must go up. Food cooks faster, because it cooks at a higher temperature.

2.) Squoosh an inflated balloon between your hands. You decrease the volume and so increase the pressure. If you increase the pressure too far, it may pop. This is an example of Boyle's law.

3.) Press your lips to a balloon and blow it up. The more moles of gas (nitrogen, oxygen, carbon dioxide from your lungs) you blow into the balloon, the more it expands, but also, the more the pressure inside rises.

Answer 3

at normal atmospheric pressure and at 20 degrees centigrade......

1 mole of a gas occupies 24 litres of space

Answer 4

1]pressure cooker
2]balloon
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