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Per NCERT §6.1.5, equilibrium can only be attained under which condition?
AIn an open beaker at any T
BOnly at T = 0 K
CIn a closed system at constant T
DOnly at infinite dilution
Answer & Solution
Correct answer: C. In a closed system at constant T
NCERT §6.1.5: equilibrium requires a closed system at fixed T. Open systems (evaporating watch glass) never reach equilibrium.
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