Why are the volumes of helium, hydrogen and air all equal.
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Helium (He) is the second lightest elemental gas next to hydrogen. Colorless, odorless, tasteless, non-toxic and chemically inert, helium is non-flammable and has a high thermal conductivity. It is used to create an inert gas shield and prevent oxidization during welding of metals such as aluminum, stainless steel, copper and magnesium alloys. The addition of helium generally increases weld.
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A certain organ pipe, open at both ends, produces a fundamental frequency of 256 in air.If the pipe is filled. with helium at the same temperature, what fundamental frequency will it produce? Take the molar mass of air to be 28.8 and the molar mass of helium to be 4.00.
Archimedes’ principle, physical law of buoyancy, discovered by the ancient Greek mathematician and inventor Archimedes, stating that any body completely or partially submerged in a fluid (gas or liquid) at rest is acted upon by an upward, or buoyant, force the magnitude of which is equal to the weight of the fluid displaced by the body. The volume of displaced fluid is equivalent to the.
A very flexible helium-filled balloon is released from the ground into the air at 20 degree C. The initial volume of the balloon is 5.00 L, and the pressure is 760 mmHg. The balloon ascends to an altitude of 20km, where the pressure is 76.0 mmHg and the. asked by Liang on October 20, 2012; Chemistry.
