Question : The first law of thermodynamics is related to the conservation of which one of the following?
Option 1: Energy
Option 2: Number of molecules
Option 3: Number of moles
Option 4: Temperature
Correct Answer: Energy
Solution : The correct option is Energy.
Energy cannot be created or destroyed in an isolated system, according to the first law of thermodynamics, also referred to as the law of conservation of energy. It can only change forms or be transferred between different parts of the system and its surroundings. Mathematically, the first law of thermodynamics can be expressed as ΔU = Q − W.
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