NEET Physics Heat Engines MCQ Question
What is the relationship between the work done on a thermodynamic system and the change in internal energy?
The change in internal energy is equal to the work done plus the heat transferred.
The change in internal energy is independent of work done.
The change in internal energy is always zero if work is done.
The change in internal energy is equal to the heat transferred only.
Correct Answer
Detailed Explanation
According to the first law of thermodynamics, the change in internal energy (∆U) is given by the equation ∆U = q + w, where q is the heat transferred and w is the work done on the system. This indicates that the change in internal energy is directly linked to both work and heat.
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