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BITSAT 2013
Exam
BITSAT
Year
2013
Subject
Physics
Chapter
Thermodynamics

BITSAT 2013 · Physics · Thermodynamics

A thermodynamical system is changed from state (P_ 1 , ~V_ 1 ) to...

A thermodynamical system is changed from state (P1, V1)\left(\mathrm{P}_{1}, \mathrm{~V}_{1}\right) to (P2, V2)\left(\mathrm{P}_{2}, \mathrm{~V}_{2}\right) by two different process, the quantity which will remain same will be

Options

  1. AΔQ\Delta \mathrm{Q}
  2. BΔW\Delta \mathrm{W}
  3. CΔQ+ΔW\Delta \mathrm{Q}+\Delta \mathrm{W}
  4. DΔQ−ΔW\Delta \mathrm{Q}-\Delta \mathrm{W}

Correct answer

D. ΔQ−ΔW\Delta \mathrm{Q}-\Delta \mathrm{W}

Step-by-step solution

For all process ΔU=ΔQ−ΔW\Delta \mathrm{U}=\Delta \mathrm{Q}-\Delta \mathrm{W} does not change as it depends on initial final states.
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