Question

Give the values of ΔHo, ΔSo, and T, determine ΔGo and indicate if the reaction is spontaneous. ΔHo = 115 kJ , ΔSo = 263 J/K , and T = 615K ΔGo=___ kJ Spontaneous? yes or no

Answer 1

`\Delta G^0=-46.745\ kJ`

`\Delta G^0<0`, the reaction is spontaneous.

Step-by-step explanation:

The expression for the standard change in free energy is:

`\Delta G^0=\Delta H^0-T* \Delta S^0`

Given that:

`\Delta H^0=115\ kJ`

`T=615\ K`

`\Delta S^0=263\ J/K`

Also, 1 J = 10⁻³ kJ

So,

`\Delta S^0=0.263\ kJ/K`

Applying in the above formula as:

`\Delta G^0=115-615* 0.263\ kJ`

`\Delta G^0=-46.745\ kJ`

Since,
`\Delta G^0<0`, the reaction is spontaneous.