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Question

When disorderness of a system increases, the change is said to be:

A
Exothermic
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B
Non-spontaneous
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C
Endothermic
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D
Spontaneous
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Solution

The correct option is D Spontaneous
As disorderness or randomness of a system increases entropy increases i.e. ΔS=+ve and the change will be spontaneous.

Theory:

Spontaneous process: A process which occurs in a certain direction on its own or by proper initiation.

Note: Does not necessarily take place instantaneously or at a fast rate. These processes are favorable and feasible.

Entropy is defined as a measure of randomness or disorder of a system.
All-natural processes are spontaneous because of an increase in randomness.

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