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AP EAMCET202123 Aug 2021Evening ShiftPhysicsThermodynamicsActual

In a given process, for an ideal gas, W=0 and Q < 0 . Then, for the gas,

Options

  1. Athe temperature will decrease
  2. Bthe volume will increase
  3. Cthe pressure will remain constant
  4. Dthe temperature will increase

Correct answer

A. the temperature will decrease

Step-by-step solution

In the given process, for an ideal gas W=0 and Q < 0 By lst law of thermodynamics, Q= W+ U where, U= internal energy of gas. aligned & Q= U & and also U < 0 . aligned As the internal energy depends on temperature. Therefore, if change in internal energy is negative, it mean temperature of gas is decreased.

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