•P36 During three hours one winter afternoon, when the outside temperature was was kept at 20°C (68°F) with the expenditure of 45 kWh (kilowatt-hours) of ele leakage in joules per second through the walls of the house to the environment (th

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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.