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Which of the following processes would you expect to have a negative value for entropy? NaCl(s) Na+(aq) + Cl- (aq) H2O(s) H2O(l) NaCl(s) NaCl(l) 2 Al(s) + 3Br2(l) 2AlBr3(s) C2H5OH(l) C2H4(g) + H2O(g)

Jessie Thompson

in Chemistry

1 answer

1 answer

Deborah Edwards on August 4, 2018

A negative change in entropy is associated with reactions that range from a disordered state to a more ordered state. In this case, going to be the chemical reaction:2 Al(s) + 3Br2(l) -> 2AlBr3(s)This is because we have a mix (high entropy) are reacted to form a solid (low entropy).

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