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MHT CET202618 April 2026Morning ShiftPhysicsThermodynamicsActual

Which of the following graphs between pressure and volume of a gas correctly shows isochoric process in thermodynamics?

Options

  1. A(D)
  2. B(A)
  3. C(C)
  4. D(B)

Correct answer

D. (B)

Step-by-step solution

An isochoric process is a thermodynamic process in which the volume of the gas remains constant ( V = constant ). On a Pressure-Volume (P-V) graph, a process with constant volume is represented by a vertical line parallel to the pressure axis. Looking at the given graphs, graph (B) shows a vertical line, indicating that the volume is constant while the pressure changes. Therefore, graph (B) correctly represents an isochoric process. Answer: (B)

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