Physics · Thermodynamics
The change in internal energy (dU) for a closed system undergoing an infinitesimal reversible process between two equilibrium states is given by:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1dU = −TdS − pdV
- 2dU = pdV − TdS
- 3dU = TdS − pdV✓
- 4dU = TdS + pdV
Correct answer
dU = TdS − pdV
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