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Pick out the wrong statement. | |
A. | Surface tension of a substance vanishes at critical point, as there is no distinction between liquid and vapour phases at its critical point. [Wrong Answer] |
B. | Entropy of a system decreases with the evolution of heat. [Wrong Answer] |
C. | Change of internal energy is negative for exothermic reactions. [Wrong Answer] |
D. | The accentric factor for all materials is always more than one. [Correct Answer] |