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Phase Change

If for a give...

Question

If for a given substance melting point is $T_{B}$ and freezing point is $T_{A}$ , then correct variation shown by graph between entropy change and temperature is

A

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B

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C

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D

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Solution

The correct option is A

For a pure substance $T_{A}$ and $T_{B}$ represent the same temperature. Hence A is a correct choice.

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The graph alongside represents a cooling curve for a substance being cooled from a higher temperature to a lower temperature.

What is the boiling point and freezing point of the substance?

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