- 07/13/2019 at 8:51 pm #1439768EduGorillaKeymasterSelect Question Language :
A cylindrical steel rod, 0.01 m in diameter and 0.2 m in length is first heated to 750 oC and then immersed in a water bath at 100 oC. The heat transfer coefficient is 250 W/m2-K. The density, specific heat and thermal conductivity of steel are ρ = 7801 kg/m3, c = 473 J/kg-K, and k =43 W/m-K, respectively. The time required for the rod to reach 300 oC is _____ seconds.
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