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When work is done on system or by a system there is a change in _________(a) external energy(b) internal energy(c) adiabatic energy(d) isothermal energyThe question was asked in final exam.My query is from Thermodynamic Terms in section Thermodynamics of Chemistry – Class 11

Answer»

Correct answer is (b) internal energy

To explain: When a WORK is done or by the system, heat passes into out of the system and matter ENTERS or leaves the system, there is a change in internal energy of the system. It is REPRESENTED by the symbol “U”.



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