A sample of liquid in a thermally insulated container (a calorimeter) is stirred for 2 hr…

Chemistry · JEE Main · NTA ExamsChemical Thermodynamics

A sample of liquid in a thermally insulated container (a calorimeter) is stirred for 2 hr by a mechanical linkage to a motor in the surrounding, for this process;
  1. w < 0; q = 0; U = 0
  2. w > 0; q > 0; U > 0
  3. w < 0; q > 0; U = 0
  4. w > 0; q = 0; U > 0

Answer

(D) w > 0; q = 0; ∆ U > 0

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