Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Viscosity of Milk Question

  1. Feb 25, 2008 #1
    1. The problem statement, all variables and given/known data

    The change of viscosity with temperature can be described using the general equation
    ln(µ) = A + (B/T), where µ represents dynamic viscosity, T represents temperature (Kelvin), and A and B are constants.

    a) Find the values of A and B for raw milk, using the viscosity and temperature values given in the
    table below.

    eg K = -273.15, u = 0.00344

    2. Relevant equations

    ln(µ) = A + (B/T)

    3. The attempt at a solution

    ln(0.00344) = A + (B/-273.15)

    I dont understand how to calculate A and B since there are two variables and only one equation? Can someone help me work out this question?

    Perhaps the answer is a ratio of A and B?

    Thanks so much,
  2. jcsd
  3. Feb 25, 2008 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    You need to plot a graph. The constants will be the gradient and the y intercept.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook