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The melting point of gallium is 29.76 °C at 1 atmosphere pressure because under these conditions O AS and Assure for the proc

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Answer #1

B, C : correct

During melting ,heat is absorbed from surrounding. Solid becomes liquid. So, randomness of the system increases. Hence, dS of system becomes +ve

Since, heat is released by surrounding which gets absorbed by the system. Hence, entropy of system increases while that of surrounding decreases. Hence, both are equal in magnitude but opposite in sign.

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