Menu
Home / Mechanical Engineering / Heat and Mass Transfer :: Discussion

Discussion :: Heat and Mass Transfer

  1. Thermal conductivity of a material may be defined as the

    2. A.

     Quantity of heat flowing in one second through one cm cube of material when opposite faces are maintained at a temperature difference of 1°C
    B.

     Quantity of heat flowing in one second through a slab of the material of area one cm square, thickness 1 cm when its faces differ in temperature by 1°C
    C.

     Heat conducted in unit time across unit area through unit thickness when a temperature difference of unity is maintained between opposite faces
    D.

     All of the above

    View Answer

    Workspace

    View Answer

    Answer : Option D

    Explanation :

    Thermal conductivity of a material may be defined as the
    - Quantity of heat flowing in one second through one cm cube of material when opposite faces are maintained at a temperature difference of 1°C
    -Quantity of heat flowing in one second through a slab of the material of area one cm square, thickness 1 cm when its faces differ in temperature by 1°C
    -Heat conducted in unit time across unit area through unit thickness when a temperature difference of unity is maintained between opposite faces

Write your comments here:

Be The First To Comment