Predict the sign for ∆S of these reactions/processes
(1) positive, 2) negative, or (3) it is not possible to predict/not enough information
● melting double stranded DNA
● freezing water
● dissolving NaCl in water
● changing the temperature of liquid water from 45 ºC to 25 ºC ● N2 (g)+ 3 H2 (g) → NH3 (g)
● CaCO3 (s) → CO2 (g) +CaO (s)
● mixing hot and cold water
● unfolding a protein
● forming a DNA double helix from its individual strands
● mixing ice at -10°C with liquid water at 20°C
● sublimating solid CO2
● decreasing the temperature of a protein solution
● 3O2 (g) → 2O3 (g)
● dissolving glucose in water
● Binding a drug to an enzyme
sign for ∆S of these reactions/processes.
● melting double stranded DNA = Positive
● freezing water = negative
● dissolving NaCl in water = positive
● changing the temperature of liquid water from 45 ºC to 25 ºC = it is not possible to predict.
● N2 (g)+ 3 H2 (g) → 2NH3 (g) = negative
● CaCO3 (s) → CO2 (g) +CaO (s) = positive
● mixing hot and cold water = negative
● unfolding a protein = positive
● forming a DNA double helix from its individual strands = negative
● mixing ice at -10°C with liquid water at 20°C = it is not possible to predict
● sublimating solid CO2 = positive
● decreasing the temperature of a protein solution = it is not possible to predict
● 3O2 (g) → 2O3 (g) = negative
● dissolving glucose in water = positive
● Binding a drug to an enzyme = negative
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