Gases and Our Lives Period 7 March 2012

Coca - Cola This product contains gas at the top where there is no liquid and when you open it you can her the distinct or you can even say trademark sound which is actually the release of gas. Gas laws can be used to describe what happens to when you open the cap and also how much pressure I in the bottle before being opened.

A Helium balloon in the sun This relates to gas laws because the pressure is kept constant by the atmosphere and the temperature increases due to the sun so the volume increases as well. This is like super cool because imagine a balloon in the air floating and getting bigger. Isn't that like too funny?? P.s. whoever doesn’t think so needs laughing gas. -> HAHAHAHA! Courtesy of Abiola Guinny

A bottle of soda or beer. When soda/beer is cold only a bit of pressure is released when is opened. When warm and opened enough pressure is released that it squirts out the top. The temperature rises which increases the volume and gains pressure. So when you open the soda/beer it releases all that pressure that was just gained Combined gas law Luckens potus Per.7

Basketball By: John Tornifoglia In the winter time the basketball seems somewhat deflated. But in the summer time it feels as if the basketball is full of air. This has to do with gas laws because in the summer the heat makes the molecules in the basketball move faster from the heat, which puts more pressure in the basketball. In the winter, when it is cold outside the molecules start to slow down causing less pressure in the basketball which makes it seem deflated.

Rosha Logan March 8,2012 7th period Turkey What does a turkey have to do with gas laws? The plunger on a turkey syringe thermometer pops out when the turkey is finished because the temperature for the turkey is increased which means the volume in the turkey syringe thermometer increases and cause it to pop out. Charles Law V1 T2 = V2 T1 Rosha Logan March 8,2012 7th period

Fire Extinguisher A fire extinguisher consists of a long cylinder with an operating lever at the top. Inside the cylinder is a tube of carbon dioxide surrounded by a quantity of water, which creates pressure around the CO 2 tube. When the operating lever is depressed, it activates the spring mechanism, which pierces the release valve at the top of the CO 2 tube. When the valve opens, the CO 2 spills out in the "head space," exerting pressure on the water. This high-pressure mixture of water and carbon dioxide goes rushing out of the siphon tube, which was opened when the release valve was depressed. Fire extinguishers control carbon dioxide which is normally a gas at room temperature. When it is compressed to fit into a fire extinguisher is has a much lower volume. Using the Ideal Gas Law, PV = nRT you can calculate the volume of the gaseous carbon dioxide that will be released if you know the number of grams (converted to moles) to CO2 in the extinguisher, the volume of the extinguisher, and the temperature. Maria Rossi Period 7

Geyser’s Geysers are found near underground volcanic activity. Surface water builds up to 20,000 meters where it comes in contact with hot rocks. The temperature from the magma cause the water to boil. Although the top water in the narrow channel is considerably cooler than the water below, it pushes down adding pressure causing the steam bubbles to start to rise as water reaches boiling point. As the bubbles start to surface they release pressure causing the geyser to erupt. Karla Tlahuextl 03-08-12 Per. 7

When you're opening a bottle and hear the hissing noise; most do not know that the pop is due to the pressure being higher inside the bottle than the outside. The additional pressure at the surface helps keep bubbles in the actual pop itself. Once this happens, the pressure is lower and the gas bubbles has already dissolved into the pop. They have nothing holding the liquid so they rise out and when they reach the surface, they pop and explode Gas laws: This relates to gas laws when it comes to pressure. Pressure is within the bottle, holding down the fizz until it is opened, making the foam rise. Why is this so interesting? This is interesting because it was never known that the pop was due to the pressure within the bottle. However, it is understandable because once you open the bottle, the bubbles begin to fizz and rise, meaning that the pressure was released within the bottle and the molecules were no longer exerting pressure

Crushing an empty aluminum can. In this case when the heat of an aluminum can is manipulated than so will the volume. take an empty aluminum can and place a small amount of water inside. Heat the can until the water boils. Then place the opening of the can face down in a small amount of cold water. due to the drastic change in temperature the can will collapse inwards. This relates to gas laws because according to Charles's law temperature and volume go hand and hand. When the temperature increases so does the volume and when the temperature decreases so does the volume. When the temperature of the can was dropped so fast it caused the volume of the can to drop with it.

The mechanics of a bicycle pump rely on Boyle’s Law. Zerin Sattar Period 7 Bicycle Pumps The mechanics of a bicycle pump rely on Boyle’s Law. When you push down on a pump's plunger, the volume inside the pump decreases and the pressure increases. It is easy to feel the higher pressure the more the pump is pushed down on the plunger.

Gas Laws in Scuba Diving Gas laws are a big part in scuba diving. Diving deep into water involves having a lot of pressure put on you. The deeper you dive under water, the more pressure increases. When pressure increases, according to Boyle’s law, the volume of gasses start to decrease. Scuba divers must understand and observe these gas laws in order to make sure that their diving is safe. The gasses are in their face masks and air tanks. The diver must be aware of how gasses behave with pressure to make sure that nothing goes wrong on their dive. They wouldn't want to be one hundred meters underwater and then end up having something go wrong. Edward Mazzarese Period 7

Charles Law in Real Life ! By: Genesis Aquino Period 7 A hot air balloon is an everyday example of how Charles Law comes to play in real life. Charles law involves volume and temperature, stating that volume of a gas is directly related to the temperature of a gas. So when the gas is heated from the burner in a hot air balloon, the gas expands. When the air inside the balloon expands, it becomes less dense and lets the hot air balloon rise. I chose a hot air balloon because I have always wanted to take a ride in one and i didn’t know they related to gas laws.

Soda Cans Boyle’s Law: Relates the pressure and volume of a gas. When the pressure increases, the volume decreases and vice versa. A can of soda, such as Coca-Cola, contains the gas CO2. It makes up the space between the container and the soda itself. The CO2 in the soda creates bubbles in the liquid. At the soda manufacturer, the gas is compressed into the container in order for it to combine with the liquid. When the can is opened, the pressure in the can goes down and the volume of the gas goes up. This allows the gas to escape the can. After a while, the soda will go flat.

Boyle’s Law and Scuba Diving P1V1= P2V2 (P=pressure; V=volume) When pressure increases, volume decreases. When pressure decreases volume increases. When someone dives, the volume in their body decreases as the pressure increases. This is known as the squeeze or crushing effect. However, it does not happen to scuba divers. The Boyle’s Gas Law explains why this is so. The Boyle’s Law explains when scuba divers ascent and descent, and how their air tank compensates the pressure in the buoyancy compensator device, mask, lungs and everywhere else that contains air. Whenever, a scuba diver descends, the pressure increases. Increased pressure causes the volume to decrease, which means that the air takes up less space. This means that when the diver ascends, the BCD will deflate. This is because it is causing the air to compress into smaller volumes. In order for scuba divers to get enough air, their air tank regulator has to give them air at the same pressure as the water. As a scuba diver ascent to the surface, they must breathe in and out regularly. This is a must because as they ascent the pressure decreases and the volume of the air increases. When the volume of the air increases, their lungs expand. Breathing in and out regularly is the only way to prevent their lungs form getting too big. If it gets too big, many internal damages can occur which can be very detrimental to the diver. 17

M67 Grenade Grenades relate to gas laws because the detonation part of the grenade must increase the pressure inside the grenade to explode through the casing and create a 15 ft blast radius.

The plunger on a turkey syringe thermometer pops out when the turkey is done for the reason that the volume of air trapped under the plunger increases when the temperature inside the turkey increases.

Hot air balloon By: Xavier Hardison Period 7 -Created in Paris, France on November 21, 1783 -First human carrying aircraft -Raising air temperature causes the balloon to expand and lift -Gas molecules in the balloon take up a greater distance A flame is put under the balloon and causes the molecules to heat up and move more rapid The hot air balloon can be connected to Charles law (Volume & temperature) It relates to gas laws because when temperature rises, the volume increases also A certain temperature is needed to cause a lift off