Question

Determine whether the following reaction is spontaneous under standard state conditions.

2 H₂O_(l) + O_2(g) → 2H₂O_2(l)

if ∆H⁰ = 196 kJ, ∆S⁰ = -126 J/K

Does it have a cross-over temperature?

Answer 1

\(\because\) ∆G⁰ > 0, the reaction is non-spontaneous.

∆H⁰ > 0, ∆S⁰ < 0,

Since at all temperatures, ∆G⁰ > 0, there is no cross over temperature.

The reaction is non-spontaneous. There is no cross-over temperature for the reaction.