Thermodynamics of a Marshmallow in a Microwave

This project studies the relationship of some thermodynamic properties of a marshmallow as it is heated in a microwave, relating it to the concept of a cycle. Properties of time, temperature, volume, and mass measurements... [ view full abstract ]

This project studies the relationship of some thermodynamic properties of a marshmallow as it is heated in a microwave, relating it to the concept of a cycle. Properties of time, temperature, volume, and mass measurements were recorded at varying power levels. This process describes what happens to the marshmallow as it is heated by microwave bombardment. One relation investigated was time versus temperature. As the time was increased, the temperature also increased as well with a mostly linear correlation. The other relations tested were volume versus time, volume versus energy absorbed, volume versus temperature, and mass versus time. These relations were used to help confirm and define the heat cycle of a marshmallow in a microwave. The cycle was determined to be, an adiabatic expansion, an isothermal dehydration, and an adiabatic compression. This cycle helps to define the time period where the marshmallow is at its steady state, making the marshmallow at its prime state. Marshmallows are typically heated for many cooking purposes including s’mores and Rice Krispie treats. This research is important because it will help to determine how to perfect the heating of a marshmallow to what is desired, as well as being a great example of a thermodynamic system.