Which transformation requires the larger number of calories? the condensation of 1 gram of steam at 100 degrees Celsius to water at 100 degrees. the solidification of 1 gram of water at 100 degrees Celsius to 1 gram of ice at 0 degrees Celsius. Both transformations require the same number of calories.

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First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.