Explain the working of cup calorimeter with a neat labelled diagram
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A cup calorimeter is a constant pressure calorimeter. As such, the heat that is measured in such a device is equivalent to the change in enthalpy. ... A styrofoam cup makes for a good adiabatic wall and helps keep all the heat released or absorbed by the reaction inside the cup so we can measure it.
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Explanation:
A basic coffee cup calorimeter typically consists of a styrofoam cup, an insulated lid, and a thermometer through a hole in the lid. It's typically filled with water. Calorimeters measure the energy transferred between the water in the cup and an object that's placed into the water.
Coffee cup calorimeters are often used in high school chemistry calorimetry labs. A specific mass of water is poured into the styrofoam cup, and the temperature of the water is recorded. An object or substance is quickly placed into the water, and the lid is replaced. After a minute or two, the temperature is measured again.
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