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Usually we use a temperature of 20°C and an absolute pressure of 101.325 kPa for 1 atmospher.

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13y ago

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Scientific notation of velocity of sound?

The velocity of sound in air at sea level at normal temperature and pressure is 3.4329 metres/second.


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.


What is the relationship of speed of sound to the atmospheric pressure?

There is a relationsship of speed of sound to the temperature but not to the atmospheric pressure.


How velocity of sound in relation with salinity and temperature and pressure?

Speed of sound in water is affected by the oceanographic variables of temperature, salinity, and pressure. Look at the link: "How fast does sound travel in water?"


What causes the pressure sound you hear when you turn off the car air conditioning?

That is the normal sound of the pressure equalizing in the system.


What is the speed of sound at standard temperature pressure?

What is temperature pressure?Notice for musicians and technicians (not for physics professors):The speed of sound changes clearly with temperature, a little bit with humidity − but not with air pressure (atmospheric pressure).The words "sound pressure at sea level" are incorrect and misleading. The temperature indication, however, is absolutely necessary. The changing of atmospheric pressure does not change the sound of musical instruments in a concert hall or in a room.


How does pressure affect sound wave propagation?

Only the temperature is changing the speed of sound.


What is the speed of sound in metric units?

It varies with air temperature, pressure, humidity, and density, and it's completelydifferent in other substances other than air.For normal conditions in comfortable air near sea-level, I use the figure of 343 meters/second.


Is sound produced when there are increases in pressure or oscillations in pressure?

Yes, sound is produced when there are changes in pressure that cause the particles in a medium to oscillate. The pressure variations create sound waves that travel through the medium, such as air or water, and are detected by our ears as sound.


Does pressure affect sound waves?

The speed of sound changes clearly with temperature, a little bit with humidity - but not with air pressure (atmospheric pressure). The words "sound pressure at sea level" are incorrect and misleading in the case of "speed of sound". The temperature indication, however, is absolutely necessary. The changing of atmospheric pressure does not change the sound of musical instruments in a concert hall or in a room; see link: "Speed of Sound in Air and the effective Temperature".


What is the effects of variations of pressure on the speed of sound in gase?

The speed of sound in a gas is influenced by variations in pressure, but primarily depends on the gas's temperature and molecular composition. In an ideal gas, when pressure increases at a constant temperature, the speed of sound remains relatively unchanged because both density and stiffness increase proportionally. However, at constant pressure, an increase in temperature results in a higher speed of sound due to reduced density. Thus, while pressure changes alone have a limited direct effect, they interact with temperature to influence sound speed.


About how fast is the speed of sound in air?

The speed of sound changes clearly with temperature, a little bit with humidity - but not with air pressure (atmospheric pressure). The words "sound pressure at sea level" are incorrect and misleading in the case of "speed of sound". The temperature indication, however, is absolutely necessary.Formula for speed of sound c = 331 + 0.6 × ϑϑ = temperature in degrees celsius.At ϑ = 20°C we get a speed of sound c = 331 + 0.6 × 20 = 343 m/s.1 °C change of temperature is equal to 60 cm/s change of speed of sound. 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 or elevation) only because of the changing temperature there!Look at the link: "Speed of Sound in Air and the effective Temperature".