*Q.188.State Newton's law of cooling. Explain
how it can be experimentally verified.
Answers
Explanation:
It is relatively easy to experimentally verify Newton's Law of Cooling. ... After calculating the rate of the cooling curve, we find that the rate of cooling is proportional to the difference between the temperature of the object and the temperature of the surroundings, verifying Newton's Law of Cooling.
Answer:
It is relatively easy to experimentally verify Newton's Law of Cooling. After calculating the rate of the cooling curve, we find that the rate of cooling is proportional to the difference between the temperature of the object and the temperature of the surroundings, verifying Newton's Law of Cooling.
Explanation:
This lesson will introduce the reader to Newton's Law of Cooling, what it is, how it is experimentally verified, and how we can use it to calculate the cooling rate of objects in real-world examples.
Physics in Action
We have all had that problem of reaching for our hot cup of coffee or tea and realizing that it has already gotten cold. Or we have wondered why certain materials stay cool to the touch under the sun while others are scorching hot. In this lesson, we will learn how and why objects cool and learn how to calculate this cooling with real-world problems and examples.
Newton's Law of Cooling
Isaac Newton created his revolutionary Law of Cooling in the 17th century. Newton's Law of Cooling is a formula that allows us to determine the temperature of an object during heat loss. Isaac Newton stated that ¨the rate at which a warm body cools is proportional to the difference between the temperature of the warm body and the temperature of its environment.¨ Newton's theory can also be put into an equation, giving us the Law of Cooling equation:
Law of Cooling
With T (t) being the temperature of an object at a certain time
t being the time in seconds
Ts being the temperature of the surroundings
T0 being the starting temperature of the object
and k being the cooling constant.
Using this equation, we can calculate how fast an object at a certain temperature would cool in a specific environment, and how the rate of cooling of an object is dependent on the difference of temperature between the object and the surroundings but also on the cooling constant of the object.
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