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Describe the basic principle of differential scanning calorimetry(long question)
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Differential scanning calorimetry (DSC) is a thermoanalytical technique that measures the difference in the amount of heat required to increase the temperature of a sample and a reference material as a function of temperature. The basic principle of DSC is that the heat flow into a sample is measured as a function of temperature while the sample is subjected to a controlled temperature program. The difference in heat flow between the sample and the reference is then plotted as a function of temperature. This plot is known as a DSC curve. DSC curves can be used to identify and characterize materials, as well as to study phase transitions, chemical reactions, and other thermal events.
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