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TS EAMCET · Physics · Thermodynamics

A gas system is taken through the thermodynamic cyclic process 1 → 2 → 3 → 1 as shown below. The amount of heat released by the system is

  1. A \(-\mathrm{P} \frac{\mathrm{V}}{2}\)
  2. B \(\mathrm{PV}\)
  3. C \(\frac{P V}{2}\)
  4. D \(\frac{-3 \mathrm{PV}}{2}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(-\mathrm{P} \frac{\mathrm{V}}{2}\)

Step-by-step Solution

Detailed explanation

As process is cyclic \(\begin{aligned} & \Delta \mathrm{U}=0 \\ & \Delta \mathrm{Q}=\Delta \mathrm{W} \\ & =\text { Area enclosed by curve } \\ & =\frac{1}{2} \times \mathrm{V} \times \mathrm{P}=\frac{\mathrm{PV}}{2} \end{aligned}\) As process is clockwise, so…