If ammonia is manufactured at 356 K, is the reaction spontaneous, given that the enthalpy and entropy change for the reaction are -93 kJ/mol and -198 J/mol K, respectively?

A. Yes, the ΔG is -22.5 kJ/mol.
B. No, the ΔG is 92 kJ/mol.
C. Yes, the ΔG is -92 kJ/mol.
D. No, the ΔG is 22.5 kJ/mol.

Question

If ammonia is manufactured at 356 K, is the reaction spontaneous, given that the enthalpy and entropy change for the reaction are -93 kJ/mol and -198 J/mol K, respectively?

 		A.	Yes, the ΔG is -22.5 kJ/mol.
 		B.	No, the ΔG is 92 kJ/mol.
 		C.	Yes, the ΔG is -92 kJ/mol.
 		D.	No, the ΔG is 22.5 kJ/mol.

vera_ewing · Answer

@Somy

jfraser · Answer

plug the values into $\Delta G = \Delta H - T*\Delta S$ and see

vera_ewing · Answer

@JFraser It's either B or D right?

jfraser · Answer

there should be no either or, it should be obvious if you did the math right. I haven't done it yet

vera_ewing · Answer

Ok Well I got B as my answer. Thanks :)