JIPMER2013ChemistryThermodynamics (C)
3 2 O ₂(g) O ₃(g) ; K_p for this reaction is 2.47 10⁻²⁹ . At 298 ~K , _r G^ for conversion of oxygen to ozone will be
Options
- A100 ~kJ ~mol ⁻¹
- B150 ~kJ ~mol ⁻¹
- C163 ~kJ ~mol ⁻¹
- D2303 ~kJ ~mol ⁻¹
Correct answer
C. 163 ~kJ ~mol ⁻¹
Step-by-step solution
aligned _r G^ = & 2.303 log~Kp (R=8.314 JK ⁻¹ ~mol ⁻¹ ) _r G^ = & -2.303 8.314 JK ⁻¹ ~mol ⁻¹ 298 ~K & 2.47 10⁻²⁹ = & 163000 Jmol ⁻¹=163 ~kJ mol ⁻¹ aligned