Which of the following is correct option for free expansion of an ideal gas under adiabatic condition?

Which of the following is correct option for free expansion of an ideal gas under adiabatic condition?
  1. $q \neq 0, \Delta T=0, W=0$
  2. $q=0, \Delta T=0, W=0$
  3. $q=0, \Delta T < 0, W \neq 0$
  4. $q=0, \Delta T \neq 0, W=0$

Solution

For an adiabatic process, $q=0$ and for free expansion, $W=0, \therefore \Delta T=0$.

Asked in: NEET 2011 (Screening)

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