The occurrence of a reaction is impossible if [AIIMS 1982, 91; MP PET 1997; MP PMT 1999; DPMT 2002]

(1) ΔH is +ve ; ΔS is also + ve but ΔH < TΔS

(2) ΔH is – ve ; ΔS is also – ve but ΔH > TΔS

(3) ΔH is – ve ; ΔS is + ve

(4) ΔH is + ve ; ΔS is – ve

Concept Videos :-

#27 | Entropy Change Estimation
#28 | Entropy Change Calculation : Case I
#31 | Condition for Spontaneity
#34 | Solved Problems
#40 | Solved Problems on Spontaneity

Concept Questions :-

Spontaneity and Entropy
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