Home › NEET UG › chemistry › c11entropy_gibbs_2nd3rd › Per NCERT eqn 5.19, for a SPONTANEOUS process th…
Per NCERT eqn 5.19, for a SPONTANEOUS process the TOTAL entropy change (system + surroundings) obeys which inequality?
AΔS_total = 0 always
BΔS_total < 0
CΔS_total = ΔH
DΔS_total = ΔS_sys + ΔS_surr > 0
Answer & Solution
Correct answer: D. ΔS_total = ΔS_sys + ΔS_surr > 0
Per NCERT eqn 5.19, ΔS_total > 0 for spontaneity. At equilibrium ΔS = 0. This is the second law in entropy form.
Related questions
Per NCERT §5.7 eqn 5.23, the relation between ΔG° and equilibrium constant K is which?Per NCERT Table 5.4, a reaction with ΔH > 0 AND ΔS > 0 is spontaneous under which conditioPer NCERT Table 5.4, a reaction with ΔH < 0 AND ΔS > 0 is spontaneous under which conditioPer NCERT §5.6(c) (criteria), the sign of ΔG for a SPONTANEOUS process at constant T and pPer NCERT eqn 5.20-21, GIBBS energy G and its change ΔG at constant T are given by which ePer NCERT §5.6(d), the SECOND LAW of thermodynamics, in entropy form, states which?Per NCERT §5.6(e), the THIRD LAW of thermodynamics states which?Per NCERT Problem 5.10, in which of the following processes does entropy DECREASE?