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Concepts Of Physics MCQ Edition [Volume 2]PhysicsKinetic Theory of Gases

An ideal gas goes through the process illustrated in the figure. This process is classified as

Options

  1. Aadiabatic
  2. Bisochoric
  3. Cisothermal
  4. Disobaric

Correct answer

B. isochoric

Step-by-step solution

From the given p-T graph, the process is represented by a straight line passing through the origin. This implies that pressure is directly proportional to temperature: p T p = cT (where c is a constant) According to the ideal gas equation: pV = nRT p = ( nR V )T Comparing the two equations, we get: nR V = c Since n and R are constants for a given amount of ideal gas, the volume V must also be constant. A thermodynamic process in which the volume remains constant is called an isochoric process.

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