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What diffuses faster air or oxygen gas why?
Oxygen gas diffuses faster than air because oxygen molecules are smaller and lighter than the molecules of air, which is mostly composed of nitrogen and oxygen. This allows oxygen molecules to move more quickly through a medium, such as air or other gases.
Does cold air have less oxygen compared to warm air?
Yes, cold air typically has more oxygen compared to warm air because cold air is denser and can hold more oxygen molecules.
Why the pressure of oxygen becomes low at high altitudes?
At higher altitudes, the air pressure decreases because the air molecules are more spread out. This reduction in pressure means there are fewer oxygen molecules available in the air to be breathed in, leading to lower oxygen levels at high altitudes.
Does cold air contain more oxygen than warm air?
Yes, cold air typically contains more oxygen than warm air. This is because cold air is denser and can hold more molecules, including oxygen.
What are 3 gases in the air which are molecules?
Nitrogen, oxygen (including ozone), carbon dioxide
What does the experiment suggest about the average speed of hydrogen molecules compared with the average speed of molecules in the air?
The experiment suggests that the average speed of hydrogen molecules is higher than the average speed of molecules in the air. This is because hydrogen molecules are lighter and have a higher root mean square speed due to their lower mass.
What measures the average speed of air molecules?
The temperature of a gas is related to the average kinetic energy of its molecules, which is directly proportional to their speed. Therefore, temperature indirectly measures the average speed of air molecules.
Temperature measures the blank in the air?
The temperature of the air is a measure of the degree of molecular movement of all the Nitrogen and Oxygen molecules that largely make up air. Technically, it is determined by getting the average speed of a body's molecules.
How does the average speed of air molecules relate to the temperature?
The average speed of air molecules increases with temperature. This is because higher temperatures provide more thermal energy to the molecules, causing them to move faster on average. Conversely, lower temperatures result in slower average speeds of air molecules.
Average speed of air molecules?
A thermometer. Temperture is the measure of the kinetic energy, Aka speed, of molecules.
What is the measure for the average speed of air molecules?
The measure for the average speed of air molecules is typically calculated using the root mean square (RMS) speed formula, which considers the distribution of speeds within the gas. The RMS speed provides a representative value that takes into account the kinetic energy of individual molecules in the gas sample.
do bromine molecules move faster then air molecules?
The speed of gas molecules is primarily determined by their temperature, not their specific identity. At the same temperature, bromine molecules and air molecules would have similar average speeds.
How many out of 200 air molecules are oxygen?
Air is 21% oxygen so 21% of 200 is 42 oxygen molecules.
Is the average kinetic energy per molecule the same for oxygen and nitrogen molecules in air at a given temperature?
Yes, at a given temperature, the average kinetic energy per molecule is the same for oxygen and nitrogen molecules in air. This is because the kinetic energy of a gas molecule is determined by its temperature, and not its composition.
What diffuses faster air or oxygen gas why?
Oxygen gas diffuses faster than air because oxygen molecules are smaller and lighter than the molecules of air, which is mostly composed of nitrogen and oxygen. This allows oxygen molecules to move more quickly through a medium, such as air or other gases.
Why presence of moisture increases speed of sound in air?
Moisture, in the form of water vapor, increases the speed of sound in air because water molecules are lighter than nitrogen and oxygen molecules present in dry air. This decrease in average molecular weight results in faster sound propagation. Additionally, water vapor has a higher specific heat capacity compared to dry air, which affects the speed of sound as well.
How fast is air molecules if temperature of the gas is 0 Celsius degrees?
The air molecules would go very slow because the air molecules are tight close together.
