For a reaction, A⇌P, the plots of [A] and [P] with time at temperatures T1 and T2are given below.If T2 > T1, the correct statement(s) is (are)(Assume ΔH0 and ΔS0 are independent of temperature and ratio of lnK at T1 to lnK at T2 is greater than T2T1 . Here H, S, G and K are enthalpy, entropy, Gibbs energy and equilibrium constant, respectively.)
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a
ΔHθ<0,ΔSθ<0
b
ΔGθ<0,ΔHθ>0
c
ΔGθ<0,ΔSθ<0
d
ΔGθ<0,ΔSθ>0
answer is A.
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Detailed Solution
A⇌P given T2>T1lnK1lnK2>T2T1⇒T1lnk1>T2lnk2 ⇒−ΔG10>−ΔG20⇒−ΔH∘+T1ΔS∘>−ΔH∘+T2ΔS∘ ⇒T1ΔS∘>T2ΔS∘⇒ΔS∘<0
For a reaction, A⇌P, the plots of [A] and [P] with time at temperatures T1 and T2are given below.If T2 > T1, the correct statement(s) is (are)(Assume ΔH0 and ΔS0 are independent of temperature and ratio of lnK at T1 to lnK at T2 is greater than T2T1 . Here H, S, G and K are enthalpy, entropy, Gibbs energy and equilibrium constant, respectively.)