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The entropy change in the conversion of ...

The entropy change in the conversion of water to ice at 273 K for the system is -21.99 `JK^(-1) mol^(-1)` and that of surrounding is +21.99 `JK^(-1)mol^(-1)`. State whether the process is spontaneous or non-spontaneous.

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At this temperature, water and ice will be at equilibrium.
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