The correct statement regarding entropy is:A. At absolute zero temperature, entropy of a perfectly crystalline solid is zeroB. At absolute zero temperature, the entropy of a perfectly crystalline substance is +veC. At absolute zero temperature, the entropy of all crystalline substances is zeroD. At `0^(@)C` the entropy of a perfectly crystalline solid is zero.

The correct statement regarding entropy is:A. At absolute zero tempera

1.	The correct statement regarding entropy is:A. At absolute zero temperature, entropy of a perfectly crystalline solid is zeroB. At absolute zero temperature, the entropy of a perfectly crystalline substance is +veC. At absolute zero temperature, the entropy of all crystalline substances is zeroD. At `0^(@)C` the entropy of a perfectly crystalline solid is zero.
Answer» Correct Answer - A Entropy of perfectly crystalline solids will be zero at absolute zero. It is predicted in the third law of thermodynamics.

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The number of state functions the following properties are Temperature, Pressure, Volume, Heat capacity. Density, `pH` of a solution, `EMF` of a cell. Entropy, Free energy. Enthalpy, Surface tension, Viscosity, Boiling point.
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A gas can expand from `100 mL` to `250 mL` under a constant pressure of `2` atm. The work done by the gas isA. `30.38` jouleB. `25` jouleC. `5 k` jouleD. `16` joule
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Assertion:Absolute values of intenal energy of substances cannot be determined. Reason:It is impossible to determine exact values of constituent energies of the substances.A. If both ther assertion and reason are true and the reason is the correct explanation of the assertion.B. If both the assertion and reason are true but reason is not the correct explantion of the assertion.C. If the assertion is true but reason is false.D. If assertion is false but reason is true.
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