engineering recuitment ONGC AEE Mechanical Mock Test 2025 Thermodynamics Availability and Irreversibility Available and Unavailable Energy
उपलब्धता फलन को किस रूप में व्यक्त किया गया है?
1
a = (dU + P0dv – T0ds)
2
a = (U + P0v + T0s)
3
a = (U + P0v – T0s)
4
a = (U + P0dv + T0ds)
5
a = (U - P0dv - T0ds)