The First Law of Thermodynamics is essentially a specific application of which fundamental principle of physics? MCQ with Answer and Explanation

The first law of thermodynamics states that the heat supplied to a system (dQ) is equal to the change in its internal energy (dU) plus the work done by the system (dW): dQ = dU + dW. This is the law of conservation of energy applied to thermodynamic systems, stating that energy cannot be created or destroyed, only transferred or changed in form.