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Thread: water's bulk modulus

  1. #1 water's bulk modulus 
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    i know the density of water depend on temperature..but i really don't know the bulk modulus of water depend on the temperature.

    what is the meaning of tyrer,NBS and randall that can be found in the picture?the properties of water?
    water's bulk modulus depend on the temperature...so..are bulk modulus of any substances depend on the temperature?
    i have found that the bulk modulus of water is 2.2GPA...but the bulk modulus of water depend on the temperature..so,what is the water temperature when the bulk modulus of water is 2.2 GPA?


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  3. #2  
    Forum Isotope Bunbury's Avatar
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    Tyrer (or Tryer?) and Randall are the people who plotted two of the curves and NBS is the National Bureau of Standards. See link.

    Chart 001-4 present~ bulk modulus of water curves at atmospheric
    pressure for temperatures of 32° to 100° F. The Randall and
    Tryer curves were plotted from data published by Dorsey (reference 1).
    The National Bureau of Standards curve was computed from Greenspan and
    Tschiegg data (reference 2) on the speed of sound in water. The equation
    used
    where
    v=
    E =
    P =
    in the computation was
    r
    v= E
    F
    speed of sound in water in ft per sec
    bulk modulus in psi
    density of fluid in slugs per cu ft
    A change in pressure up to 10 atmospheres appears to have negligible
    effect on the value of the bulk modulus.
    4. A curve for the Greenspan and Tschiegg data on the effect of
    temperature on the speed of sound in water is shown on Chart 001-5.
    5. References.
    (1) Dorsey, N. Ernest, Properties of Ordinary Water-Substance, Reinhold
    Publishing Corp., New York, N. Y., 1940, Table 105, p 243.

    (2) Greenspan, M., and Tschiegg, C. E., “Speed of sound in water by a
    direct method.” Research Paper 2769, Journal of Research of the
    National Bureau of Standards, vol 59, No. 4 (October 1957).
    http://chl.erdc.usace.army.mil/Media/2/7/6/000.pdf


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  4. #3  
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    thank you..
    but,are sll substances's bulk modulus depend on temperature?
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  5. #4  
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    Are all substances' bulk modulus depend on temperature and density?
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  6. #5  
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    nobody know the answer?
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  7. #6  
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    I don't know the answer, but it is reasonable to suppose that they all depend upon these to a greate ror lesser extent.

    Why is there such urgency to receive an answer?
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  8. #7  
    Forum Isotope Bunbury's Avatar
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    For liquids and gases the answer is yes. For solids I would assume it is also yes but can't say from personal knowledge. This abstract suggests the answer is yes for solids also.

    http://www.springerlink.com/content/...ext.pdf?page=1
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