Wiki User
∙ 13y agoa)
PV=nRT
R=0.08214 L(atm)/mol(K)
and you know the rest of the values... so make sure you have the right units and solve for n
n= 9*8/(0.08214*20)
n=43.82
b)
part a found the number of moles, so just use Avagadro's number, which is the number of atoms or molecules in a mole
43.82*6.023*10^23
that will give you the molecules of gas in the vessel
Wiki User
∙ 13y agoTemperature and Pressure
temperature and pressure
Yes. When the temperature increases the molecules are more excited and move farther apart. When the pressure decreases, the molecules also have more space and will fill the void.
temperature increase The pressure of a contained sample of gas can be increased by increasing its temperature, or by decreasing its volume, or by injecting additional mass into it.
I believe the relationship has to do with heat expanding molecules and maybe the opposite. Hence the pressure and temperature relationship.
Gives it higher pressure.
When temperature increases, pressure also increases.
It will increase
If the temperature is low, then the molecules of the gas have less kinetic energy and thus it has low pressure. If the temperature is higher, then the molecules have more energy and thus the gas has higher pressure
BAHHBEEE!
Temperature and pressure
Yes, air pressure is affected by temperature.When the temperature is higher the air pressure lowers and the weight of the air is lower. When air is warmer the molecules sperate and there are less molecules that can cause pressure.
Temperature and pressure
For an enclosed gas (contained in a fixed volume), the pressure increases as temperature increases.Another way to picture this is that at higher temperatures, the gas molecules colliding with the walls of the container are more energetic, so the force exerted (pressure) is greater.
Barometric pressure has everything to do with temperature. There is a simple way to understand the relationship... The higher the temperature is, the lower the pressure. The lower the temperature is, the higher the pressure. Reasoning: Barometric pressure is caused by expansion and contraction of gaseous molecules(the air we breathe). Heat causes the molecules to expand, and become less dense, causing the warm air to rise, and pressure to be dropped. Cold causes the molecules to contract, making the air become more dense, and fall closer to the ground. Heat is rapidly moving, generously spaced molecules. Cold is slower moving, closer spaced molecules.
Vapor pressure increases with temperature. As the temperature increases ,molecules of liquid find it easier to escape.
Temperature and pressure.