Question

For the following reaction :

CaCO₃ (s) ¾® CaO (s) + CO₂ (g)

If at 0K, DS for the reaction is x cal/mol then entropy of CO₂ (g) at 0K is:

• A. – x cal
• B. – 2x cal
• C.
  • x cal
• D. 0 cal

Answer 1

Answer: (C)

• x cal

Answer 2

D_rS = x = D_f S (CO₂, g)