30. For a thermodynamic cyclic process, a)the total internal energy change must be zero b)the heat added to the system is greater than the work done by the system c)the heat added to the system is lesser than the work done by the system d)the heat added to the system and the work done by the system are both equal to zero 31. It is natural for systems in the universe to _____ spontaneously a)become ordered b)become disordered c)produce heat

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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.