Chemistry Thermodynamics and Thermochemistry First law of Thermodynamics and Hess law Single Correct MCQ
Published on: August 14, 2026

The law of conservation of energy states that

A
The internal energy of a system is constant
B
The heat content of a system is constant
C
Energy is neither created nor destroyed
D
There is an equivalence between energy and mass

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The correct answer is:
C

The law of conservation of energy states that energy can neither be created nor destroyed; it can only be transformed from one form to another.

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