Which of the following is a statement of the first law of thermodynamics? A)E_k = mv² B)A negative ΔH corresponds to an exothermic process. C)ΔE = E_final - E_initial D)Energy lost by the system must be gained by the surroundings. E)1 cal = 4.184 J (exactly)

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The first law of thermodynamics, also known as the law of conservation of energy, states that energy cannot be created or destroyed, only transferred or converted from one form to another. In other words, the total amount of energy in a closed system remains constant. D is the most direct statement of this law, as it emphasizes that any energy lost by the system (in the form of work or heat) must be gained by the surroundings (in the form of work done on them or heat transferred to them).

Which of the Following Is a Statement of the First