Q6
The standard free energies of formation of H2S(g) and CdS(s) at 1000°C are -49.0 kJ/mol and -127.2 kJ/mol respectively. Use these data to predict whether H2(g) will reduce CdS(s) to metallic Cd at this temperature.
A.
ΔG = -78.2 kJ/mol and H2 reduces CdS
B.
ΔG = -39.1 kJ/mol and H2 reduces CdS
C.
ΔG = 0 kJ/mol and the reaction is at equilibrium
D.
ΔG = 78.2 kJ/mol and the reaction is not feasible
AnswerAnswer: Option D
Solution
Answer: Option D
No explanation is given for this question Let's Discuss on Board