Question

Select correct statement

• A. In the decomposition of an oxide into oxygen and solid/liquid metal, entropy increases.
• B. Decomposition of an oxide is an endothermic change.
• C. To make DG° negative, temperature should be high enough so that T DS° >DH°.
• D. All are correct statements.

Answer 1

Answer: (D)

All are correct statements.

Answer 2

(2) It is true statements, HgO Hg + 1/2O2

(3) For a reduction process the change in the free energy, DG0 must be negative and to make G0 negative temperature should be high enough so that TDS0 > DH0.