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Thermodynamics

Question
CBSEENCH11006243

In the following changes, state whether order has increased or decreased and consequently the direction of change of entropy of the system:

left parenthesis straight i right parenthesis space straight H subscript 2 straight O left parenthesis straight l right parenthesis space space space space rightwards arrow space space space straight H subscript 2 straight O left parenthesis straight s right parenthesis
left parenthesis ii right parenthesis space Dry space ice space left parenthesis solid space CO subscript 2 right parenthesis space space rightwards arrow space space space CO subscript 2 left parenthesis straight g right parenthesis
left parenthesis iii right parenthesis space Steam space space rightwards arrow space space space water

Solution

(i) The order has increased, entropy decreases in the forward direction. 
(ii) The order has decreased, entropy increases in the forward direction.
(iii) The order has increased, entropy decreases in the forward direction.