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At the same temperature, helium gas will move faster due to its lower atomic weight. Helium has an atomic weight of 4g/ mol, while argon has an atomic weight of 39.95g/ mol.
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Why does helium change the pitch of your voice?
Helium is a very light gas. Light gases tend to float (as seen in a helium filled balloon). It is a light gas because it moves very very fast. It is said to be NOT dense. When you have sucked Helium in, your breath that you use to speak will pass through the Helium gas. Your breath will now be moving faster. Things that move faster tend to have higher pitch. Note: Helium does not change your vocal chords or your vocal muscles... just the speed of your breath. Also, Argon gas can make your voice sound lower. But this is dangerous because it can sink into your lungs. So I was told you should be hanging upside down if you ever want to take a sip of Argon gas. I have never done this. DO NOT ATTEMPT this. You could pass out and suffocate if no one is around you.
Why does inhaling helium increase voice pitch?
Because Helium is lighter than air so when you breath it it makes your vocal chords move faster giving you an increased voice pitch
Sounds move faster in these media?
The media that sound moves faster in order are solids, then liquids, and then gases or air. Sound cannot travel in a vacuum because it is a vibration of molecules.
Why do the particles move faster in a vacuum?
Particles do not move faster in a vacuum. Particles move faster when the temperature increases.
Why does a rocket move?
By gases moving inside the rocket and then it will move forword.
What do the elements neon argon krypton and xenon have in common?
It sounds like you're listing noble gases, the members of group 18. In addition, helium and radon are members. The properties of these gases are chemically very similar to that of helium, though the physical properties, like density, change as you move up and down the group.
Does hcl gas move faster than helium?
No, at the same temperature helium moves faster as it has a lower mass.
What happens to the mass and density of the noble gases as we move down the group?
As we move down the group (group 18 of periodic table) of noble gases from Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn) the individual atoms become heavier and so gases at the same pressure and temperature will become more dense.
Do gases move faster when they are heated?
Yes
Why does helium change the pitch of your voice?
Helium is a very light gas. Light gases tend to float (as seen in a helium filled balloon). It is a light gas because it moves very very fast. It is said to be NOT dense. When you have sucked Helium in, your breath that you use to speak will pass through the Helium gas. Your breath will now be moving faster. Things that move faster tend to have higher pitch. Note: Helium does not change your vocal chords or your vocal muscles... just the speed of your breath. Also, Argon gas can make your voice sound lower. But this is dangerous because it can sink into your lungs. So I was told you should be hanging upside down if you ever want to take a sip of Argon gas. I have never done this. DO NOT ATTEMPT this. You could pass out and suffocate if no one is around you.
When molecules in liquids and gases are heated they?
When molecules in liquids and gases are heated they move faster
What has a higher velocity helium or oxygen?
At the same temperature and prssure in a gas the helium atoms will on average move faster than the O2 molecules.
How liquids change to gases?
When heat is added to liquid, the liquid molecules move faster They can move out of the container
How does higher temperature allow gases to dissolve faster?
The hotter it is the faster the molecules will move away from each other
How come liquid doesn't contract as much as gas does?
gases particles move faster
How gases expand?
As heat is put into a gas, the molecules gain energy and move faster and faster (the temperature goes up). The faster they move the less the intermolecular forces become so the further they can move away from each other
Why does sound travel faster in helium than in air?
Hydrogen atoms are lighter and move more rapidly.
