Question: Temperature gradient is an important concept in heat transfer. It represents the change rate of temperature with distance. Temperature also changes with time. Write the

Temperature gradient is an important concept in heat transfer. It represents the change rate of temperature with distance. Temperature also changes with time. Write the differential expressions for the terms where

T

designates temperature.

(

) lim_{x 0} \frac{T (x + x) - T (x)}{x}

(

) lim_{0} \frac{T (t + t) - T (t)}{t}

Temperature gradient is an important concept in

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