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Which of the following statements is/are correct?A. First law of thermodynamics can be seen as law of conervation of energy. So according to first law, total energy of a system always remains constant.B. `pH` is an extensive property.C. Third law of thermodynamics state that entropy of a chemically pure perfect crystal is zero at `0^(@)C`D. Entropy of an isolated system always increases in an irreversible process. |
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Answer» Correct Answer - D (A). Total energy of a ISOLATED system remains conserved. (C). Entropy of a chemically pure perfect crystal is zero at. Zero KELVIN. (D). This is one of the statements of second law of thermodynamics. |
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