A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C to 450°C in 20 seconds. The expected temperature of the ball after next 20 seconds may be about ____________________ °C?

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Accepted Answer

370. Cooling rate is often modeled as linear or following Newton's law of cooling. If the temperature drops from 550°C to 450°C (a drop of 100°C) in 20 seconds, a similar drop might occur next.