A liquid when kept inside a thermally insulated closed vessel at 25ºC was mechanically stirred from outside. What will be the correct option for the following thermodynamic parameters. (A) U 0, q =

Question

A liquid when kept inside a thermally insulated closed vessel at 25ºC was mechanically stirred from outside. What will be the correct option for the following thermodynamic parameters. (A) U > 0, q = 0, w > 0 (B) U < 0, q = 0, w > 0 (C) U = 0, q = 0, w = 0 (D) U = 0, q < 0, w > 0

Prashant Kotian · Accepted Answer

Correct answer: A. Thermally insulated  q = 0 E or U = Q + W U = W (because W > 0 therefore U = 0).

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