Q.

In a closed insulated container. a liquid is stirred with a paddle to increase its temperaturc. In this process, which of the following is true

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a

ΔE=W=Q=0

b

ΔE≠0,Q=W=0

c

ΔE=W≠0,Q=0

d

ΔE=Q≠0,W=0

answer is C.

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Detailed Solution

As the system is closed and insulated no heat enter or leave the system,  i.e. q=0;∴ΔE=Q+W=W.
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