Question
Assess the accuracy of these statements concerning
entropy and thermodynamic equilibrium: (I) Entropy measures the disorder or randomness within a system. (II) At thermodynamic equilibrium, a system's entropy reaches its maximum. (III) Entropy decreases in reversible processes.Solution
Entropy is indeed a measure of disorder or randomness within a system, and at thermodynamic equilibrium, entropy is maximized, reflecting the most disordered state. Statement (III) is incorrect because entropy remains constant in a truly reversible process and increases in real, irreversible processes.
89Â Â Â Â Â 78Â Â Â Â Â 74Â Â Â Â Â 67Â Â Â Â Â 63Â Â Â Â ?
642 202 541 312 523 ?
...61                          48                          ?                    ...
261Â Â Â Â Â 256Â Â Â Â Â Â 246Â Â Â Â Â Â 231Â Â Â Â Â 211Â Â Â Â Â ?
...21    23    49    152    ?     3086
15, 65, 165, 315, ?, 765
To find the Next number in the given series.
6 9 13 19 29 47 ?
...30 27 20 9 ? - 25
5 ? 205 823 7405 29623
16, 54, 128, ‘?’, 432,686
