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Overview

Newton's law of cooling states that the rate of loss of heat of body is directly proportional to the excess of its temperature from its surrounding.

-This method is only applied to liquids to determine their specific heat. The rate of loss of heat from a body by radiation depends on the following factors:
-Temperature excess between two bodies and their surroundings.
-Area of the body surface.
-Nature of the radiated surface.

-In this experiment, consider two calorimeters of the same metal that have the same dimensions are polished carefully. They both contain two different liquids, one of which has known specific heat, (e.g. water), while the other has unknown specific heat.

-Heat the two liquids up to a temperature and let them cool down. Take the temperature reading as a function of time and draw a graph between time and the recorded temperature.

-If identical ranges of temperature are taken for both liquids, the average rate of heat will be identical, though the average fall rate of temperature will not.

-If the fall rates of temperature are found from the curves of both liquids, then we can find expressions for the rates of heat loss, and by calculating them, we can determine the specific heat of unknown liquid.

Aim

Determination of the specific heat of a liquid.

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You can easily access more than 130 of the 3D simulations of Physics, Chemistry and Biology anytime via your PC, laptop, tablet or even your smartphone, without any need to install an additional driver software.

Our virtual lab aims to facilitate the science teaching process for educators and also make it easy for students to absorb the theory and the application of all science experiments.

All of the 3D simulations are baked with a helping multimedia files to ensure that all learners can perform the science experiments without facing any difficulties.

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