tianadevoe5999 tianadevoe5999
  • 15-05-2023
  • Engineering
contestada

Warm water at a constant temperature of 60°C is kept in a concrete container of wall thickness 0. 2 m, initially at 25°C. Estimate the time it will take for the outside surface temperature of the wall to begin to increase. Thermal diffusivity = 4. 9 × 10–7 m2/s. Also determine the temperature at 5 cm from inside at this time

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