When is the entropy of a perfectly crystalline solid zero?

A crystalline solid has

A) For N_(2) O gas, the difference in specific heats at constant pressure and at constant volume is equal to 0.04545 cal/g B) Entropy of a perfectly crystalline solid is zero at absolute zero of temperature C) Standard Gibbs energy of formation and standard enthalpy of formation are zero for elements in standard state D) T(deltaS^(0) _("total") = Delta G Which of these statements are true?

Assertion : Due to Frenkel defect, there is no change in the density of the crystalline solid. Reason : In Frenkel defect, no cation or anion leaves the crystal.

What is the value of Y for a perfectly elastic body?

Why does the entropy of a solid increase on fusion?

What is the bulk modulus of a perfectly rigid body?

Which of the following is not a characteristics of a crystalline solid?

Which of the following is not a characteristic of a crystalline solid? i) Definite heat of fusion ii) Isotropic nature iii) A regular ordered arrangement of constituent particles. iV) A true solid

Frenkel defect and Shottky defects are two stoichiometric defects found in crystalline solids. Write any two differences between Frenkel defect and Schottky defect.

A 2.844 g binary salt (X) of a univalent metal reacted completely with 0.642 g of sulphur in an evacuated sealed tube to give 3.486 g of a white crystalline solid (Y). (Y) forms a hydrated double salt (Z) with Al_(2) (SO_(4))_(3) . Therefore