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If the temperature of a gas is constant and you multiply its pressure by its volume it will always equal the what?
Wiki User
∙ 13y ago
Ideal gas Law
PV = nRT
where
P is pressure
V is volume
n is moles
R is a constant of 8.31
and T is temperature
so if u multiply PV with T constant, that leaves nR, therefore you will always get mole of the air multiplied with 8.31
Wiki User
∙ 13y ago
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What is the effect of pressure o the speed of sound?
The air pressure has no effect. The static air pressure p_ and the density ρ of air (air density) are proportional at the same temperature. The ratio p_ / ρ is always constant, on a high mountain or even on sea level altitude. That means, the ratio p_ / ρ is always constant on a high mountain, and even at "sea level". The static atmospheric pressure p_ and the density of air ρ go always together. The ratio stays constant. When calculating the speed of sound, forget the atmospheric pressure, but look accurately at the very important temperature. The speed of sound varies with altitude (height) only because of the changing temperature there.
When a gas is enclosed in a smaller volume what pressure does it exerts?
More. That is the only answer that is possible with the information provided. The ideal gas law states: PV=nRT. Solving for P gives: P=(nRT)/V. So you can see that if temperature and amount of gas are constant (R is always a constant), decreasing V will increase pressure and increasing V will decrease pressure. An easier formula derived from this one is P1V1=P2V2.
What happens to temperature and number particles as the volume increases?
Although it isn't always accurate - especially at high pressures - the ideal gas law is a good, simple way of looking at the general relationship between pressure, volume, temperature and total number of particles in a gas. According to the Ideal Gas Law: PV = nRT where P is pressure, V is volume, n is the number of particles, R is the ideal gas constant , and T is absolute temperature. If the system is closed, then by definition the number of particles remains the same even if volume changes. If the system is NOT closed, then the question is not sufficiently constrained to predict what will happen to the number of particles. Assuming a closed system, if the volume increases then either the pressure must decrease or the temperature increase (or both). If pressure is held constant, the temperature must increase to keep the pressure stable. If the pressure is allowed to fall, the temperature may actually remain the same. If the process is adiabatic, both the pressure and the temperature will decrease (for most gases - hydrogen and helium have a range where they actually heat up as they expand)
What is the temperature of liquid nitrogen at atmospheric pressure is it always -196C or can it be colder?
Well, let's think about it. What is the temperature of liquid waterat atmospheric pressure ? Is it always 99°C or can it be colder ?Seems like the temperature of any liquid substance can be anywherebetween its boiling point and its freezing point.
If the amount and temperature of a gas are kept constant the pressure and volume of the gas are what?
When you say "amount", I'll assume you mean the 'mass' of the sample.The pressure and volume will be inversely proportional. That means that whateveryou do to one of them, the other one will change in just the right way so that theirproduct is always the same number.
Why constant pressure is always greater than constant volume?
You can't compare pressure with volume. Presumably, somebody was talking about something being greater AT constant pressure, compared to constant volume.
Why the human body temperature always remains constant in normal person?
why the human body temperature always remains constant in normal person
How temperature affect the speed of sound?
The speed of sound in air changes clearly with temperature, a little bit with humidity − but not with air pressure (atmospheric pressure).Statement: The static air pressure p_ and the density ρ of air (air density) are proportional at the same temperature, because the ratio p_ / ρ is always constant, on a high mountain or even on sea level altitude.Notice: The ratio p_ / ρ (static air pressure to air density) is really always constant.
Does the pressure of a gas always increases with increasing temperature?
Yes. However the volume of a gas must be constant or decreasing. If the volume is increasing then the pressure may not be increasing. For apex the answer if False.
The pressure of gas always increases with increasing temperature?
True.The Ideal Gas Law is PV = nRT, where P is pressure, V is volume, n is the amount of gas, R is the gas constant, and T is temperature. You can see clearly that, all other things being equal, pressure is directly proportional to temperature.
Why pressure does not effect the speed of sound?
The static air pressure p_ and the density ρ of air (air density) are proportional at the same temperature. The ratio p_ / ρ is always constant, on a high mountain or even on sea level altitude. That means, the ratio p_ / ρ is always constant on a high mountain, and even at "sea level". The static atmospheric pressure p_ and the density of air ρ go always together. The ratio stays constant. When calculating the speed of sound, forget the atmospheric pressure, but look accurately at the very important temperature. The speed of sound varies with altitude (height) only because of the changing temperature there. See related link.
What is the effect of pressure o the speed of sound?
The air pressure has no effect. The static air pressure p_ and the density ρ of air (air density) are proportional at the same temperature. The ratio p_ / ρ is always constant, on a high mountain or even on sea level altitude. That means, the ratio p_ / ρ is always constant on a high mountain, and even at "sea level". The static atmospheric pressure p_ and the density of air ρ go always together. The ratio stays constant. When calculating the speed of sound, forget the atmospheric pressure, but look accurately at the very important temperature. The speed of sound varies with altitude (height) only because of the changing temperature there.
Why doesn't pressure affect the speed of sound?
Pressure doesn't affect the speed of sound because the static air pressure p_ and the density ρ of air (air density) are proportional at the same temperature and because the ratio p_ / ρ is always constant whether on a high mountain or even on sea level altitude. Therefore, the speed of sound stays constant and is only dependent on the changing temperature.
Can the freezing point be lower than its boiling point in a constant pressure?
At a constant pressure, the freezing point is always going to be lower than the boiling point.
How is the temperature of a gas related to its pressure?
At hIgher temperatures, the volume will be greater. This is caused by thermal expansion. As you add heat to the gas, it expands usually at a costant rate. There fore, it's volume Increases. However, it's mass will always remain constant.
What is your body temperature that's always constant?
Body temperature is around 37.But it is not fixed.I may vary a little.
How does air temperature affect sound speed?
The speed of sound in air changes clearly with temperature, a little bit with humidity − but not with air pressure (atmospheric pressure).Statement: The static air pressure p_ and the density ρ of air (air density) are proportional at the same temperature, because the ratio p_ / ρ is always constant, on a high mountain or even on sea level altitude.Notice: The ratio p_ / ρ (static air pressure to air density) is really always constant.
