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Predict the sign of entropy change for each of the following changes of state : (a) Hg(l) → Hg(g) (b) (c) (d) C(graphite)→C(diamond) |
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Answer» y is a "MEASURE" of the lack of thermal energy of any mechanical work system. It also represents the system's randomness. As randomness increases the system entropy. Entropy of the system is directly proportional to the randomness. Let's predict the sign of entropy change in the following. Here, liquid CHANGES to gas more disordered. Entropy changes into positive Here, solid changes to gas more disordered. Entropy changes into positive Here, gas changes to solid LESS disordered. Entropy changes into negative. GRAPHITE is more stable allotrope. Entropy changes into positive." |
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