NEET 2002 Chemistry question

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

(1)Correct
(2)
(3)
(4)

Answer: (1)

Solution

The container is insulated (adiabatic), so no heat is exchanged: . The paddle does work on the liquid, , which raises its temperature and hence its internal energy. From the

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Question ID VK-088994