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What gas does a jar full of air fouled by breathing contained an excess of?
The jar would contain an excess of carbon dioxide due to exhaled breath.
How is the air pressure inside the jar related to the air molecules inside the jar?
The air pressure inside a jar is related to the number of air molecules present. When there are more air molecules in the jar, the pressure increases due to more collisions with the walls of the jar. Conversely, fewer air molecules result in lower pressure.
Which substance can be compressed in a jar to change its volume?
Air can be compressed in a jar by applying pressure, which changes its volume. This can be demonstrated by using a vacuum pump to remove air from the jar, causing the remaining air to compress.
What happens when you put a balloon in a jar then remove all the air?
If all of the air is removed from the jar, the pressure inside the jar will decrease. Since the pressure inside the balloon is now higher than the pressure inside the jar, the balloon will expand to fill the space.
A noisy toy is placed in a glass jar. All the air is then slowly removed from the jar. How does this affect the sound you hear?
As the air is removed from the jar, the sound of the toy will become quieter and eventually inaudible. This is because sound requires a medium (such as air) to travel through, and with no air in the jar, there is no medium for the sound waves to propagate through.
What you air used for?
Air is used for breathing. Breathing is used to introduce oxygen into our system. Oxygen is necessary for life. Without breathing in air we would die.
What do air do for us?
Air is used for breathing. Breathing is used to introduce oxygen into our system. Oxygen is necessary for life. Without breathing in air we would die.
why fire fighters use pressurized air but not oxygen in the breathing apparatus?
Things burn much more easily in oxygen than in air. For instance, if you put a match that is just smouldering in air into a jar of oxygen it will flare up and burn brightly. Think of what might happen to a fire fighter breathing oxygen in a smouldering building! Then of course there's the basic fact that human beings are meant to breathe air, not oxygen, in the first place.
Do water form outside a hot water jar?
Yes, water vapor can form outside of a hot water jar. When the hot water inside the jar heats the air around it, the air can hold more moisture. As this hot and moisture-laden air comes into contact with cooler surfaces outside the jar, such as the jar itself or the surrounding air, condensation occurs and water droplets can form.
List two ways in which the air you breathe in different from the air you breathe out?
you breathing is out and in and that is the breathing is changes is
The act of breathing air into the lungs-?
The act of breathing air into the lungs is simply called breathing. From the lungs, the air is transferred into the blood stream and moved to the other parts of the body.
How do you make a homemade apparatus to show how breathing of lungs occurs?
Refer to wikipedia for a diagram and description of how a bell jar works, and how it demonstrates effectively how breathing takes place.
