Ask Question
29 May, 19:45

A walrus loses heat by conduction through its blubber at the rate of 220 W when immersed in - 1.00°C water. Its internal core temperature is 37.0°C, and it has a surface area of 2.23 m2. What is the average thickness of its blubber? The conductivity of fatty tissue without blood is 0.20 (J/s · m · °C).

+3
Answers (1)
  1. 29 May, 21:27
    0
    The average thickness of the blubber is 0.077 m

    Explanation:

    Here, we want to calculate the average thickness of the Walrus blubber.

    We employ a mathematical formula to calculate this;

    The rate of heat transfer (H) through the Walrus blubber = dQ/dT = KA (T2-T1) / L

    Where dQ is the change in amount of heat transferred

    dT is the temperature gradient (change in temperature) i. e T2-T1

    dQ/dT = 220 W

    K is the conductivity of fatty tissue without blood = 0.20 (J/s · m · °C)

    A is the surface area which is 2.23 m^2

    T2 = 37.0 °C

    T1 = - 1.0 °C

    L is?

    We can rewrite the equation in terms of L as follows;

    L * dQ/dT = KA (T2-T1)

    L = KA (T2-T1) : dQ/dT

    Imputing the values listed above;

    L = (0.2 * 2.23) (37 - (-1)) / 220

    L = (0.2 * 2.23 * 38) / 220 = 16.948/220 = 0.077 m
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A walrus loses heat by conduction through its blubber at the rate of 220 W when immersed in - 1.00°C water. Its internal core temperature ...” in 📙 Engineering if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers