A body in a room cools from 90°C to 80°C in 5 minutes. The time taken to cool from 70°C to 60°C is?
Answer: More than 5 minute
Explanation
- The rate of cooling of a body is typically faster at higher temperatures and slows down as the temperature difference between the body and its surroundings decreases. This behavior is governed by Newton's law of cooling.
- Given that the body cools from 90°C to 80°C in 5 minutes, we can infer that the rate of cooling will be slower when the temperature difference is smaller, such as when cooling from 70°C to 60°C.
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