There are three gas laws that we have learned. I learned to use PTV to show me what will happen to the volume, temperature, or pressure if one of them is constant.
The Charle's Law is where the pressure stays constant. The temperature and volume are directly related. So they both go up and both go down at the same time. One experiment that showed Charles Law was when we placed a balloon in the liquid nitrogen. The balloon shrunk due to the temperature change. The pressure stayed constant, but the volume and the temperature changed. A real life example is when you leave a balloon out in the sun, where it can get heated up. The volume of the balloon increases until it can not grow any larger and then it explodes.
The Boyle's Law is when the temperature is constant. The pressure and the volume are indirectly related. Which is when the pressure increases and then the volume will decrease. If the volume increases and then the pressure will decrease. One experiment we did that showed Boyle's Law was with the marshmallow and the syringe. The temperature did not change during this experiment, but the pressure and the volume of the marshmallow did. When pulling out the syringe the marsh mellow grew larger because there was less pressure on it. When we pushed the syringe in the marshmallow shrunk because there was more pressure on it. A real life example is when you squeeze a balloon so much that it pops. The temperature does not change when you pop the balloon. When squeezing the balloon it caused there to be more pressure which made the balloon pop and the volume of the balloon decreased.
The Gay- Lussac's Law is where the volume is constant. The pressure and temperature are directly related. One experiment we did that showed Gay-Lussac's law was the Egg in the bottle. When we placed the flask in the ice the egg fell into the flask. The temperature went down and so did the pressure. Which is why the egg was ale to go through the opening. A real life example of Gay-Lussac's Law is when a car tire is heated up, the pressure increases on the inside of it. Since the volume of the tire stays constant the tire might explode.
