Question: Common building brick having dimensions of 5 10 20 cm is heated to a uniform temperature of 400 K and suddenly subjected to

Common building brick having dimensions of 5 × 10 × 20 cm is heated to a uniform temperature of 400 K and suddenly subjected to air at 1 atm and 300 K. Can the brick be treated as a lumped capacity? If so, determine the time required for the center temperature to reach 350 K.

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