Internal energy of a system is defined as? – McqOptions

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1.	Internal energy of a system is defined as?
A.	The sum of kinetic energies of all molecules of the system
B.	The sum of kinetic and potential energies of all molecules of the system
C.	The sum of potential energies of the system
D.	The average kinetic energy of all molecules
Answer» C. The sum of potential energies of the system

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