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JEE Main202118 Mar 2021Evening ShiftPhysicsThermodynamicsActual

An ideal gas in a cylinder is separated by a piston in such a way that the entropy of one part is S 1 and that of the other part is S 2 . Given that S 1 > S 2 . If the piston is removed then the total entropy of the system will be:

Options

  1. AS 1 × S 2
  2. BS 1 - S 2
  3. CS 1   S 2
  4. DS 1 + S 2

Correct answer

D. S 1 + S 2

Step-by-step solution

;   S 1 > S 2 After piston is removed | ;   S total = S 1 > S 2

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