NEET2012PhysicsThermodynamicsActual
An ideal gas goes from state A to state B via three different processes as indicated in the p-V diagram If Q₁, Q₂, Q₃ indicate the heat absorbed by the gas along the three processes and U₁, U₂, U₃ indicate the change in internal energy along the three processes respectively, then
Options
- AQ₁>Q₂>Q₃ and U₁= U₂= U₃
- BQ₃>Q₂>Q₁ and U₁= U₂= U₃
- CQ₁=Q₂=Q₃ and U₁> U₂> U₃
- DQ₃>Q₂>Q₁ and U₁> U₂> U₃
Correct answer
A. Q₁>Q₂>Q₃ and U₁= U₂= U₃
Step-by-step solution
For all process 1,2 and 3 array ll & U=U_B-U_A is same & U₁= U₂= U₃ Now, & Q= U+ W array Now, W= work done by the gas Q₁> Q₂> Q₃