1. Tardigrade
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  3. Chemistry
  4. In a closed insulated container a liquid is stirred with a paddle to increase the temperature which of the following is true: -

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Q. In a closed insulated container a liquid is stirred with a paddle to increase the temperature which of the following is true : -

AIPMTAIPMT 2002Thermodynamics

Solution:

In closed insulated container a liquid is stirred with a paddle to increase the temperature, therefore it behaves as adiabatic process, so, for it $q = 0$. Hence, from first law of thermodynamics
$\Delta E=q+W\,\,i\,\,f\,\,q = 0$
$\therefore \Delta E=W$ but not equal to zero.