NEET Physics Heat Engines MCQ Question
What is the relationship between change in internal energy (∆U) and heat (q) and work (w) as per the first law of thermodynamics?
∆U = q + w
∆U = q - w
∆U = q × w
∆U = q / w
Correct Answer
Detailed Explanation
The first law of thermodynamics states that the change in internal energy (∆U) of a system is equal to the heat added to the system (q) plus the work done on the system (w). This relationship is fundamental to thermodynamics.
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