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Two large containers A and B of the same size are filled with different fluids. The...

Two large containers A and B of the same size are filled with different fluids. The fluids in containers A and B are maintained at 0° C and 100° C, respectively. A small metal bar, whose initial temperature is 100° C, is lowered into container A. After 1 minute the temperature of the bar is 90° C. After 2 minutes the bar is removed and instantly transferred to the other container. After 1 minute in container B, the temperature of the bar rises 10o. How long, measured from the start of the entire process, will it take the bar to reach 99.5° C?

A small metal bar, whose initial temperature was 30° C, is dropped into a large container of boiling water. How long will it take the bar to reach 80° C if it is known that its temperature increases 2° during the first second? (The boiling temperature for water is 100° C. Round your answer to one decimal place.) sec How long will it take the bar to reach 95° C? (Round your answer to one decimal place.) sec

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milcah answered 2 years ago
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