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Say if you had a closed bottle of air, that contained exactly 100mols, in which there would be 6.023E25 moleculs. Of these molecules, about 21% of would purely as Oxygen O2 atoms, and about 78% would exist as Nitrogen N2 atoms, with the remaining 1% being trace amounts of other gases. The atoms are all independent of each other, some moving faster, some moving slower.
What else can I help you with?
Can you justify that air is a homogeneous?
Air is considered homogeneous because it has a uniform composition throughout, with gases such as nitrogen, oxygen, and trace gases evenly mixed at a molecular level. This uniformity allows air to exhibit consistent physical and chemical properties, such as pressure and temperature, regardless of where it is sampled. While the presence of pollutants or varying humidity can create localized differences, these do not fundamentally alter the overall homogeneous nature of air in most contexts.
Do molecular elements exist in nature?
Yes, The elements hydrogen, nitrogen, oxygen, and sulfur are all molecular elements that exist in nature. Due to their reactivity, it is rare to find the halogens and phosphorus in their elemental forms in nature.
Is the apparent molecular weight of air at elevation same as at sea level?
The apparent molecular weight of a mixture of ideal gases depends on the concentrations of such gases in the Atmosphere. Below 100km altitude the gases in the atmosphere are very well mixed so that the concentration of all the gases does not vary (approximately) with altitude. Therefore the apparent molecular weight would not vary very much at an elevation and at sea level.
Why molecular weight of air is 28.9?
It is the weighted average of the individual molecular weights of the components oxygen and nitrogen. Generally speaking, air is composed of 21% oxygen and 79% nitrogen. Thus the average molecular weight of air is calculated as follows: MW air = (.21)*(MW O2) + (.79)*(MW N2)
Which discipline of biology focuses on the molecular level of organization of life?
The discipline of biology that focuses on the molecular level of organization is molecular biology. It studies the structure and function of macromolecules, such as DNA, RNA, and proteins, and how these molecules interact to regulate biological processes. Molecular biology often overlaps with genetics and biochemistry, exploring how molecular mechanisms influence cellular functions and organismal traits.
When was Nature Reviews Molecular Cell Biology created?
Nature Reviews Molecular Cell Biology was created in 2000.
Does air contains kinetic energy?
Since air is comprised of molecules that are in constant motion, the air would automatically have kinetic energy on the molecular level. On the macroscopic level, if the air is in motion (such as wind) then it would have kinetic energy by virtue of being mass in motion.
why do air ballons fly?
If it's a normal balloon like the one you'd see at a birthday, it's because it's filled with helium which is lighter than the air around us (it's hard to imagine air has weight, but it does at a molecular level). If you're talking about a hot air balloon, it floats because the air in the balloon is hotter than the air around it, and heat rises (again due to molecular-level activity). Hope that helps!
What is a molecular genetic?
Molecular genetics is the field of Biology and genetics that studies the structure and function of genes at a molecular level.
Use the word molecular in a sentence?
The cell was at a molecular level.
What is average molecular weight of air?
The average molecular weight of dry air is 28.96 g/gmol.
What is the molecular weight of air in lb lbmol?
The molecular weight of air is approximately 28.97 lb/lbmol.
What is the molecular weight of air in lb/lbmol?
The molecular weight of air is approximately 28.97 lb/lbmol.
Can you justify that air is a homogeneous?
Air is considered homogeneous because it has a uniform composition throughout, with gases such as nitrogen, oxygen, and trace gases evenly mixed at a molecular level. This uniformity allows air to exhibit consistent physical and chemical properties, such as pressure and temperature, regardless of where it is sampled. While the presence of pollutants or varying humidity can create localized differences, these do not fundamentally alter the overall homogeneous nature of air in most contexts.
Molecular weight of air at standard conditions?
First, molecular weight is a direct function of the level of dissociation and hence an indirect function of temperature. Dissociated Air has a significantly (about an order or magnitude) lower molecular weight as associated air (e.g. air at room temperature). Dissociation for air starts somewhere around 2000 Celsius (that's where O2 goes into O+O) and hence, the molecular weight of air up to 2000 Celsius is constant. This also affects the "specific gas constant" which drastically decreases in temperature regimes where dissociation occurs.With that said, the molecular weight of DRY air (no water vapor) is 28.97. Engineering Toolbox does a good job of breaking down the composition of associated air, see the URL below:http://www.engineeringtoolbox.com/molecular-mass-air-d_679.html
What is a sentence using the word molecular?
The electron microscope can show a picture of the molecular level. Molecular bonds are quite strong.
What is a molecular level?
Pertaining to, connected with, produced by, or consisting of, molecules; as, molecular forces; molecular groups of atoms, etc.
