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JEE Main 2013 (22 Apr, Shift 1) · P-V Diagrams & Cyclic Processes

P-V Diagrams & Cyclic Processes question from JEE Main 2013 (22 Apr, Shift 1)

Q79JEE Main 2013 · 22 APR · SHIFT 1Medium

P-V Diagrams & Cyclic Processes

A certain amount of gas is taken through a cyclic process (A B C D A) that has two isobars, one isochore and one isothermal. The cycle can be represented on a P - V indicator diagram as:

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Answer: (c)

  1. Isobars are horizontal lines and an isochore is a vertical line on a P-V diagram.
  2. An isotherm is a falling hyperbola (P∝1VP \propto \frac{1}{V}).
  3. Graph (c) has AB vertical (isochore), BC and DA horizontal (isobars) and CD a falling curve (isotherm).
  4. So the answer is (c).
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