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Δs is negative for the reaction __________.
a.2so2 (g) + o2 (g) → 2so3 (g)
b.nh4cl (s) → nh3 (g) + hcl (g)
c.pbcl2 (s) → pb2+ (aq) + 2cl- (aq)
d.2c (s) + o2 (g) → 2co2 (g)
e.h2o (l) → h2o (g)

Respuesta :

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ΔS =S(products) -S(reactants)

Where ΔS is the change of  entropy in a reactions

a. ΔS = (2) - (2+1) = -1
b. ΔS = (1+1) -(1) = 1
c. ΔS = (1+2) - (1) = 2
d. ΔS = (2) - (2+1) = -1
e. ΔS = (1) - (1) = 0

ΔS is negative for reaction a. and d.

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