Verified Solution • 2025–26 Session moderate

QAIPM-2002-Ch-2790: NEET 2002 Chemistry - Class 11 AIPM-2002-Ch-2790 Solution: In a closed insulated container a liquid is stirred with a…

In a closed insulated container a liquid is stirred with a paddle to increase the temperature which of the following is true?

Multiple Choice Options

  • A ΔE=W≠0,q=0\Delta E=W\neq0, q=0
  • B ΔE=W=q≠0\Delta E=W=q\neq0
  • C ΔE=0,W=q≠0\Delta E=0, W=q\neq0
  • D W=0,ΔE=q≠0W=0, \Delta E=q\neq0.

Step-by-Step Verified Solution

When in a closed insulated container, a liquid is stirred, it increases the temperature of liquid thus it started behaving as adiabatic process resulting no change in heat and only temperature increases. Therefore, q = 0 for this process. Also, _ E = q + W _ E = W (As, q = 0) As, there is rise in temperature thus, there must be change in internal energy, i.e., _ E = W � 0.

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