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Which relationship or statement best describes Delta Sfor the following reaction?
CaO(s) + CO2(g) - CaCO3(s)
Multiple Choice
О O
More information is needed to make a reasonable prediction.
ASO
O
ASCO
AS = AHIT
AS > 0

Sagot :

Answer: [tex]\Delta S[/tex]< 0

Explanation:

Entropy is the measure of randomness or disorder of a system. If a system moves from  an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.

For the reaction [tex]CaO(s)+CO_2(g)\rightarrow CaCO_3(s)[/tex]

In this reaction gaseous reactants are converting to solid products. The randomness will decrease and hence entropy will also decrease. Thus [tex]\Delta S[/tex] is negative or less than zero.

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