1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
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: Seeking Appropriate Equation for Linear Conductivity

  1. Oct 28, 2009 #1
    1. The problem statement, all variables and given/known data

    I am attempting to calculate the approximate time it takes for a stone slab to fully preheat, focusing only on one dimensional steady flow conduction. Both my area and mass are unknown.

    Thermal conductivity: 6.4 W/mK
    Specific heat capacity: 0.98 J/gK
    Density: 2,980 kg/m³

    Thickness of slab: 3.18 cm
    Distance to center: 1.59 cm
    T1: 260 C.
    T2 (core): 21.11 C.

    2. Relevant equations

    This is what I'm looking for.

    3. The attempt at a solution

    I've spent hours looking through textbooks trying to find the right equation, but everything I run across seems to have additional info such as area and mass.
  2. jcsd
  3. Oct 28, 2009 #2

    Andrew Mason

    User Avatar
    Science Advisor
    Homework Helper

    You will have to give us the whole problem. Area and mass are needed but I suspect that they fall out in your calculation.

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook