state Newton's law of cooling how it can verify
Answers
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".
Experimental Verification:
It is relatively easy to experimentally verify Newton's Law of Cooling. As mentioned above, the Law of Cooling states 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.¨ We can experimentally verify this law with a spherical calorimeter (a laboratory device that is used to measure the quantity of heat transferred to or from an object) filled with hot water. The calorimeter has mass m and specific heat capacity s and the hot water has mass m1 and specific heat capacity s1. Using the calorimeter we measure the amount of heat energy lost as the temperature of the water and calorimeter falls from temperature T0 to temperature T1 after a set time. As the temperature drops, the temperature is noted for every 30 seconds for a set time. Graphing the change of temperature versus the change in time gives us a cooling curve that we can use to calculate the rate 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.
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