the-decomposition-of-silicon-oxide-produces-solid-silicon-and-oxygen-gas-what-is

Question

The decomposition of silicon dioxide produces solid silicon and oxygen gas.

Table showing thermodynamic data for the decomposition of silicon dioxide.

What is the ΔS_sys, ΔS_surr, and ΔS_total for the reaction? At 25 °C, under standard-state conditions, what is the spontaneity of the reaction?

Accepted Answer

ΔS_sys = 182 J/K
ΔS_surr = −3.05×10³ J/K
ΔS_total = −2.87×10³ J/K
nonspontaneous

Answer

ΔS_sys = 3.05×10³ J/K
ΔS_surr = 182 J/K
ΔS_total = 3.24×10³ J/K
spontaneous

Answer

ΔS_sys = 182 J/K
ΔS_surr = 3.05×10³ J/K
ΔS_total = 3.24×10³ J/K
spontaneous

Answer

ΔS_sys = −3.05×10³ J/K
ΔS_surr = 182 J/K
ΔS_total = −2.87×10³ J/K
nonspontaneous