During a spontaneous chemical reaction, it is found that $\Delta$S_sys 0. Which of the following could not be true? A)($\Delta$S_surr $\Delta$S_sys.) E)($\Delta$_univ 0)

Question

During a spontaneous chemical reaction, it is found that $\Delta$S_sys > 0. Which of the following could not be true? A)($\Delta$S_surr < 0 and its magnitude is < $\Delta$S_sys.) B)($\Delta$S_surr > 0 and its magnitude is < $\Delta$S_sys.) C)($\Delta$S_surr < 0 and its magnitude is > $\Delta$S_sys.) D)($\Delta$S_surr > 0 and its magnitude is > $\Delta$S_sys.) E)($\Delta$_univ > 0)

Quizplus · Accepted Answer

For a spontaneous reaction, the total entropy change of the universe (ΔSuniv) must be greater than zero. If ΔSsurr is negative and its magnitude is greater than ΔSsys, then ΔSuniv would be negative, which contradicts spontaneity.

During a Spontaneous Chemical Reaction, It Is Found That Δ\DeltaΔ Ssys > 0

During a Spontaneous Chemical Reaction, It Is Found That $\Delta$ S_sys > 0