1.

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

Answer»

`DeltaE=W=Q=0`
`DeltaE ne0,Q=W=0`
`DeltaE=W NE 0, Q=0`
`DeltaE = Qne0, W=0`

SOLUTION :As the system is closed and INSULATED no heat ENTER or leave the system, i.e. q = 0 , `thereforeDeltaE = Q+W=W`.


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