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NEETChemistryThermodynamics (C)

Given below are two statements: Statement I: ( C _ pm - C _ vm = R ) is applicable for all gases. Statement II: ( C _ pm - C _ vm = R ) is applicable for ideal gas only. In the light of the above statements, choose the most appropriate answer from the options given below:

Options

  1. ABoth statement I and statement II are incorrect.
  2. BStatement I is correct but statement II is incorrect.
  3. CStatement I is incorrect but statement II is correct.
  4. DBoth statements I and statements II are correct.

Correct answer

C. Statement I is incorrect but statement II is correct.

Step-by-step solution

- Statement I: The equation (C_p-C_v=R ) is not applicable for all gases. It is specifically valid for ideal gases, but not for real gases where deviations from ideal behavior occur. - Statement II: The equation (C_p-C_v=R ) is indeed applicable only for ideal gases, which assume perfect gas behavior (no intermolecular forces and point-like molecules).

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