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Per NCERT Table 5.4, a reaction with ΔH < 0 AND ΔS > 0 is spontaneous under which condition?
AOnly at low T
BAt ALL temperatures
COnly at high T
DNever
Answer & Solution
Correct answer: B. At ALL temperatures
Per NCERT Table 5.4, ΔH(−) + ΔS(+) ⇒ ΔG = ΔH − TΔS is always negative ⇒ spontaneous at all T.
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