Q103 / 125 · BITSAT 2013 · Physics

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

  • A
    $\Delta \mathrm{Q}$
  • B
    $\Delta \mathrm{W}$
  • C
    $\Delta \mathrm{Q}+\Delta \mathrm{W}$
  • Correct answer
    D
    $\Delta \mathrm{Q}-\Delta \mathrm{W}$

Solution

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

Hence, the correct answer is option: 'D'.

More Thermodynamics Questions