Question

The ΔH of the reaction below is -575.13 kJ. Is this reaction spontaneous?
2ZnS + 3O2 + C → 2SO2 + 2Zn + CO2

A. It depends on the temperature because the ΔH of the reaction is negative and the ΔS is positive.
B. It is because the ΔH of the reaction is negative.
C. It depends on the temperature because the ΔH of the reaction is negative and the ΔS is negative.
D. It is not because the ΔH of the reaction is negative.

Answer 1

Did you calculate delta s already?

Answer 2

If s>0, then yeah, it's likely A.

Answer 3

All I know is that if h<0 and s>0, it's more than likely spontaneous. You can wait for other opinions, though.

Answer 4

Okay, let me know if it was right

Answer 5

negative value for delta H indicates that reaction is exothermic
in other words according to entropy (thermodynamics) this reaction is energetically favorable

Answer 6

energetically favorable means spontaneous

Answer 7

@Somy so I'm right?

Answer 8

it's A?

Answer 9

S has to be positive though
but well the question is telling you about delta H only

Answer 10

im between A & B

Answer 11

but im more positive about B
because your question gave delta H as info

Answer 12

Hmmm ok... thank you

Answer 13

no problem

Answer 14

@Somy It was wrong..the answer is C