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What units does the Boltzmann constant in the speed of sound in an ideal gas?
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Is speed of sound proportional to distanced traveled?
No. The amplitude of the sound (and therefore its loudness) will decrease at greater distances; the speed will remain constant (assuming other factors, such as the density of air and the temperature, are constant).
Is the speed of sound a constant explain?
Generally we take with sufficient accuracy the formula (equation) for the speed of sound in airc = 331.3 + 0.606 × ϑin m/s in m/s.Temperature ϑ(theta) in degrees Celsius.You see the speed of sound changes with the temperature and therefore cannot be a constant.
Why does speed of light change in different mediums?
Dependence of the speed of sound on the properties of the medium: The speed of sound is variable and depends mainly on the temperature and the properties of the substance through of which the wave is traveling. For example, in low molecular weight gases, such as helium, sound propagates faster compared to heavier gases, such as xenon. In a given ideal gas the sound speed depends only on its temperature. At a constant temperature, the ideal gas pressure has no effect on the speed of sound, because pressure and density (also proportional to pressure) have equal but opposite effects on the speed of sound, and the two contributions cancel out exactly. In non-ideal gases, such as a van der Waals gas, the proportionality is not exact, and there is a slight dependence on the gas pressure, even at a constant temperature. Humidity also has a small, but measurable effect on sound speed (increase of about 0.1% to 0.6%), because some oxygen and nitrogen molecules of the air are replaced by the lighter molecules of water. Cheers ebs
Newton's work showed that speed of light and sound were constant true or false?
false
Does the speed of sound depend on the loudness?
The answer is: No! In an ideal gas, which air can be considered, the speed of sound is given by:- c= √(γ(p/ρ)) where γ is the abiabatic index, p is the pressure and ρ is the density. and p= ρRT/M where R is the ideal gas constant, M is the Molar mass and T is the absolute temperature. From his equation, if temperature and mass are constant -, one can see that p is proportional to ρTherefore if atmospheric pressure is doubled so is the density Hence p/ ρ is constant. Therefore atmospheric pressure does not affect the speed of sound. However, increase in temperature will lead to an increase in speed. At high altitudes, the temperature is significantly lower, and hence the speed of sound is lower.
How do you find the most probable speed?
V_mp (most probable speed) = sqrt(2KT/m) where K is the Boltzmann constant
What is the ratio of velocity of sound in helium to that the oxygen at the same temperature and pressure?
The speed of sound of a gas is essentially equal to its average speed calculated from the Maxwell-Boltzmann distribution, <v> = sqrt(3kT/m). Since k is a constant and T is the same for both, <vHe>/<vO> = sqrt(mO)/sqrt(mHe) = 4/2 = 2. So, the speed of sound in helium is twice as fast as the speed of sound in oxygen.
Is the speed of sound always constant?
No.
Is the speed of sound a constant?
yes
Does the speed of the sound change from medium to medium?
Dependence of the speed of sound on the properties of the medium: The speed of sound is variable and depends mainly on the temperature and the properties of the substance through of which the wave is traveling. For example, in low molecular weight gases, such as helium, sound propagates faster compared to heavier gases, such as xenon. In a given ideal gas the sound speed depends only on its temperature. At a constant temperature, the ideal gas pressure has no effect on the speed of sound, because pressure and density (also proportional to pressure) have equal but opposite effects on the speed of sound, and the two contributions cancel out exactly. In non-ideal gases, such as a van der Waals gas, the proportionality is not exact, and there is a slight dependence on the gas pressure, even at a constant temperature. Humidity also has a small, but measurable effect on sound speed (increase of about 0.1% to 0.6%), because some oxygen and nitrogen molecules of the air are replaced by the lighter molecules of water. Cheers ebs
How did pressure effects the sound when temperature is constant?
The atmospheric pressure has no effect on the speed of sound when the temperature is constant. The air pressure has no influence on the sound.
Why is the speed of sound constant despite changing frequencies?
Speed of sound in a medium depends only on the properties on the medium.
What process is primarily responsible for the increase of speed and sound on a rail road track?
The speed of sound depends on the medium. There is no particular process that will simply increase the speed of sound.
Is speed of sound proportional to distanced traveled?
No. The amplitude of the sound (and therefore its loudness) will decrease at greater distances; the speed will remain constant (assuming other factors, such as the density of air and the temperature, are constant).
Is the speed of sound a constant explain?
Generally we take with sufficient accuracy the formula (equation) for the speed of sound in airc = 331.3 + 0.606 × ϑin m/s in m/s.Temperature ϑ(theta) in degrees Celsius.You see the speed of sound changes with the temperature and therefore cannot be a constant.
What is stagnation velocity of sound?
It is the speed of sound in a fluid at stagnation conditions. For example, if you have air flowing at some speed V with a temperature T and pressure P, the speed of sound in the air at those conditions will be = sqrt(kRT). k is the ratio of specific heats (approx. 1.4), R is the ideal gas constant for air (approx. 0.2870 kJ/kg/K). If that moving air hits an object and stagnates, the pressure, temperature, and density of the will increase to the stagnation conditions by an amount proportional to the air's initial velocity. The stagnation speed of sound will be the speed of the sound at those stagnation conditions (most importantly the speed of sound at the stagnation temperature).
Why does speed of light change in different mediums?
Dependence of the speed of sound on the properties of the medium: The speed of sound is variable and depends mainly on the temperature and the properties of the substance through of which the wave is traveling. For example, in low molecular weight gases, such as helium, sound propagates faster compared to heavier gases, such as xenon. In a given ideal gas the sound speed depends only on its temperature. At a constant temperature, the ideal gas pressure has no effect on the speed of sound, because pressure and density (also proportional to pressure) have equal but opposite effects on the speed of sound, and the two contributions cancel out exactly. In non-ideal gases, such as a van der Waals gas, the proportionality is not exact, and there is a slight dependence on the gas pressure, even at a constant temperature. Humidity also has a small, but measurable effect on sound speed (increase of about 0.1% to 0.6%), because some oxygen and nitrogen molecules of the air are replaced by the lighter molecules of water. Cheers ebs
