(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

where λ= thermal conductivity

[itex]\dot{q}[/itex]= dissipation rate per volume

2. Relevant equations

q_{x}=-kA[itex]\frac{dT}{dx}[/itex]

3. The attempt at a solution

I don't know where to start from to be honest, so any help would be greatly appreciated

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# Derivation of heat transfer equation for spherical coordinates

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