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What happens to density at higher altitudes?
The density of air decreases at higher altitudes.
As you get higher in the atmosphere does the particles get closer together or farther apart?
the particles get closer together because my class just talked about that stuff!!
Is it windier at higher altitudes?
Yes.
Why are oxygen masks nessesary when flying at high altitudes?
Oxygen masks are needed at higher altitude because the air is less dense, therefore less air molecules are getting into your lungs when you breath.
Why is it colder at the top of the mountain when the top is closer to the sun?
The top of a mountain is closer to the sun than the land around during the day it, but given that the sun is more than 90 million miles away, that difference is negligible. The higher you go up in the atmosphere, the colder it gets. This is because the air at high altitudes is less compressed than the air at low altitudes. When a gas is decompressed, it cools.
Why is air pressure greater at a low altitude such as sea level than at a high altitude such as at the top of a mountain?
Air molecules are pushed closer together at sea level because the column of air pushing down is higher, and will tend be even higher at locations below sea level.Although there are constant variations in air pressure due to weather, lower altitudes will generally have a higher pressure than higher altitudes.
How does the kinetic-molecular theory explain why atmospheric pressure is greater at lower altitudes than at higher altitudes?
The kinetic-molecular theory explains that there is more pressure at lower altitudes because there are more obstacles for the gas molecules to run into and create more pressure. They collide with the walls of their container as well as other molecules. And at higher altitudes, there is more space for the gas molecules to travel and not bump into things therefore not as much pressure is created. Also, some extra info: the atmosphere is denser closer to the Earth's surface because the weight of atmospheric gases at any elevation compresses the gases below.
Is pressure greater or lesser at higher altitudes?
The air pressure at low altitudes is greatest due to the force of Earth's gravitational pull on the atmospheric gases. The air closest to the center of the Earth is pulled more by gravity and is thus more compact than that in the higher altitudes. This compressed air is more pressurized since the gas molecules are closer together and undergo a myriad of collisions with one another. At higher altitudes, water boils at a lower temperature than at sea level. This is because the air pressure is much lower and can be more easily overcome by the water molecules. Vapor pressure, or the pressure at which water evaporates, is lower and this means that the temperature at which the water becomes water vapor is lower as well. While most of the first answer is correct, the relative distances from the center of Earth vary too little to be consequential. Just as in water, air at lower altitudes is compressed more simply due to the weight of all the air that's on top of it.
Is the pressure decrease or increase with altitude?
Pressure is due to the number of molecules hitting you or your instrument. As you go up in altitude, there are less molecules hitting you, i.e., the pressure decreases. The higher you go, you are getting thinner atmosphere, which means there are less molecules available, so the pressure is lower. Air molecules are more abundant closer to the surface, and therefore the molecules are closer together, i.e. higher pressure.
Do trans or cis fatty acids have a higher melting point?
The trans fatty acid has a higher melting point. The trans isomer is straighter in shape and this allows the molecules to be packed closer together. The molecules are hence held together by greater Van der Waal's force.
How does the viscosity of a fluid affect its rate of convection?
The more viscous a substance is, the closer together its molecules are, the more energy required to excite the molecules. Therefore, higher viscosity equals a lower excitability.
How does the attraction between molecules affect the ability of a liquid to flow?
Attractions between molecules may affect the viscosity of a liquid because if the molecules aren't attracted close enough together, the viscosity will be much lower (the liquid will have a watery appearance). If the molecules are closer together, the liquid will have a higher viscosity
What happens to density at higher altitudes?
The density of air decreases at higher altitudes.
Why ice melts slowly at higher altitudes?
because there is low pressure at higher altitudes
Why would you need a sunblock when climbing a mountain?
You would need sunblock when climbing a mountain because as you reach the higher altitudes you are getting closer to the sun so your skin is my likely to get burnt. Also, at higher altitudes there is alot of wind and the sunblock somewhat contributes to blocking the wind.
As you get higher in the atmosphere does the particles get closer together or farther apart?
the particles get closer together because my class just talked about that stuff!!
How does pressure change with height?
When you get into higher altitudes, there are less molecules. Making the pressure less dense. It also has less oxygen molecule, making it harder to breathe.
