Chemistry, 13.09.2019 21:30 kenzyxyz2127

An aluminium alloy plate 0.2m2 surface area (both sides), 4 mm thick and at z00 °c is suddenly quenched into liquid oxygen which is at -183 °c. find the time required for the plate to reach the temperature of -70 °c. take p-2700 kg/m3, c 890 j/kg °c, h=370 w/m2°c).

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An aluminium alloy plate 0.2m2 surface area (both sides), 4 mm thick and at z00 °c is suddenly quenc...