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What Is Meant By Newton’s Law Of Cooling ? It Is Not Explanied Anywehere Else Sir Please Tell The Answer As Soon As Possible

What Is Meant By Newton’s Law Of Cooling ? It Is Not Explanied Anywehere Else Sir Please Tell The Answer As Soon As Possible

Grade:11

1 Answers

BOLLU SRINIVAS
420 Points
6 years ago
Temperature difference in any situation results from energy flow into a system or energy flow from a system to surroundings. The former leads to heating, whereas latter leads to cooling of an object.
Newton’s Law of Cooling states that the rate of temperature of the body is proportional to the difference between the temperature of the body and that of the surrounding medium. This statement leads to the classic equation of exponential decline over time which can be applied to many phenomena in science and engineering, including the discharge of a capacitor and the decay in radioactivity.
Newton's Law of Cooling is useful for studying water heating because it can tell us how fast the hot water in pipes cools off.  A practical application is that it can tell us how fast a water heater cools down if you turn off the breaker when you go on vacation.
Suppose that a body with initial temperature T
1°C, is allowed to cool in air which is maintained at a constant temperature T
2°C.
Let the temperature of the body be T°C at time t.
Then by Newton’s Law of Cooling,
 

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