AP and TS EAMCET Medical Model Paper 6

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Question : 145 of 160

Marks: +1, -0

In which of the following processes, the sign of change in entropy is different from the other three ?

A liquid crystallises into a solid
Temperature of a crystalline solid is raised from zero kelvine to 115K
2NaHCO3(s)→Na2CO3(s)+CO2(g)+H2O(g)
H2(g)→2H(g)

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