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- Temperature-Dependent Heat Capacity At low temperatures, the specific heats of solids are typically proportional to T3. The first understanding of this behavior was due to the Dutch physicist Peter Debye, who in 1912, treated atomic oscillations with the quantum theory that Max Planck had recently used for radiation. For instance, a good approximation for the specific heat of salt, NaCl, is c =3.33× 104 J ⎛ ⎞ kg·k ⎝ T 321 K ΘD, and the formula works well when ⎠ TIn the question its asks for the rate of energy transfer P after you find what the interface temperature T is. Upon completion from submitting T in into the intial rate equation the final expansion gives: P = A(Th - Tc) / (L1/ k1) + (L2/ k2) I understand how T was achieved from expanding the P1 = P2 substitution, but how is P found from inserting T into P1 = k1A (T - Tc / L1)?A walrus transfers energy by conduction through its blubber at the rate of 150 W when immersed in −1.00ºC water. The walrus’s internal core temperature is 37.0ºC , and it has a surface area of 2.00 m2 . What is the average thickness of its blubber, which has the conductivity of fattytissues without blood?