PHYSICS F/SCIEN.+ENGRS. W/SAPLING >IC<
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ISBN: 9781319336127
Author: Tipler
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Chapter 16, Problem 19P
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Rasim and Zhihan are experimenting to determine the speed of sound in m/s in air at 0°C.
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100. GO Argon (molecular mass = 39.9 u) is a monatomic gas. Assum-
ing that it behaves like an ideal gas at 298 K (y = 1.67), find (a) the rms
speed of argon atoms and (b) the speed of sound in argon.
At what temperature would the speed of sound in oxygen be same as that in hydrogen at 27 degree C . Given that at 0 degree C , their densities are in the ratio 8:1.
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PHYSICS F/SCIEN.+ENGRS. W/SAPLING >IC<
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- The constant y for oxygen as well as for hydrogen is 1:40. If the speed of sound in oxygen is 470 m/s, what will be the speed in hydrogen at the same temperature and pressure ?arrow_forwardThe ration of the speed of sound in nitrogen gas to that in helium gas, at 300 K is? a) √(2/7) b) √(1/7) c) √3/5 d) √6/5arrow_forwardEstimate an approximate value for the Debye temperature, if there are 2x1023 atoms in a material occupying a volume of 4.65 x 10-6 m3. Assume the speed of longitudinal and transverse velocity of sound to be 4670 ms-1 and 1600 ms-1, respectively.arrow_forward
- At what temperature is the speed of sound in helium (ideal gas, = 1.67, atomic mass = 4.003 u) the same as its speed in oxygen gas at 5.40 oC? The speed of sound in oxygen at 5.40°C is 318 m/s.arrow_forwardThe speed of sound in air is 331 m/s at atmospheric pressure and 0 Celsius. Suppose you put a electronic pinger in an air-tight glass jar and change the pressure of the air inside by a factor 1.6, while the volume, composition and temperature of the air remain the same. What speed would you measure for the sound inside the jar? Give your answer in m/s.arrow_forwardA car that is about to enter a tunnel and is moving at a top speed of 50.0 [kph]. To signal that the car is coming, the car driver blows a horn, producing a sound of some frequency. At that time, the temperature of the air is about 20.0°C. What is the speed of sound in air at this temperature? If the sound is reflected back by a wall at the opening of the tunnel, what is the ratio of the incident frequency and the received frequency heard by the car driver?arrow_forward
- Q.2: Calculate the difference in the speeds of sound in air at -3°C, 60 cm pressure of mercury and 30°C, 75 cm pressure of mercury. The speed of sound in air at 0°C is 332 m/s.arrow_forwardA long tube contains air pressure of 1 atm. and temp of 77degrees C. the tube is open at one end, and closed by a movable piston on the other end. A tunning fork is near the open end and is vibrating at a frequency of 500Hz. Reasonance is produced when the piston is set at 18, 55.5, and 93 cm. From these measurements what is the velocity of sound in air at 77degC. I'm getting 375m/s and I don't think it is right because I was a little confused on my process. I appreciate your help with this problem. Thank you.arrow_forwardPROBLEMS 1. Consider a scenario in which supersonic flow is compressed and turned by 18° through an oblique shock. Consider the gas to be calorically perfect Air with upstream properties as follows: M, = 7, P, = 7.5 kPa, T1 = 225 K. Find the following: MI 6=180 (a) shock wave angle, ß. (you can either use the analytical solution from the notes or numerically find the root, whichever method you prefer). (b) downstream Mach number, M3. (c) downstream static pressure, P3. (d) downstream static temperature, T3. (e) total pressure ratio, Po.3 / Po,1- (f) entropy change, (s3-S). (g) use the VT Oblique Shock Calculator Applet to verify your results for this problem.arrow_forward
- The speed of sound in an ideal gas (not air) is 750 m/s at -50°C. What is the speed of sound in the same gas at T = 55°C? The absolute zero temperature is -273.15°C. The speed of sound, cs(T = 55°C) = Unitsarrow_forwardOn a hot summer day, the temperature of air in Arizona reaches 121°F. What is the speed of sound in air at this temperature? (The speed of sound at 0°C is 331 m/s. Use the conversion 0°C = 273 K as necessary.)arrow_forwardA vessel of volume V contains 8 gm of H₂ at temperature T = 37°C. 25% of the total molecules get dissociated when the temperature is increased to 207°C. Find the factor f by which the velocity of sound 10 gets changed inside the vessel. Fill farrow_forward
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