when mixing oil and water is the change in entropy positive or negative? Explain
According to Gibbs equation ∆G=∆H - T∆S, the mixing of oil and water cause no change in enthalpy so ∆H is zero, Now as while mixing oil and water, the oil tends to seperate with time and hence Gibbs free energy should be positive, Now at any temperature to be ∆G positive ∆S should be negative.
Now in practical sense, the vanderwaal interaction acts between coloidal oil and water which with time tends to separate out and moves toward less negative.
when mixing oil and water is the change in entropy positive or negative? Explain
When water vapour condenses at 100oC and 1.00 atm of pressure, is the change in entropy of the universe negative, zero, or positive?
When water vapour condenses at 100oC and 1.00 atm of pressure, is the change in entropy of the universe negative, zero, or positive?
When water vapour condenses at 100oC and 1.00 atm of pressure, is the change in entropy of the universe negative, zero, or positive?
When water vapour condenses at 100oC and 1.00 atm of pressure, is the change in entropy of the universe negative, zero, or positive?
When water vapour condenses at 100oC and 1.00 atm of pressure, is the change in entropy of the surroundings/environment negative, zero, or positive?
When water vapour condenses at 100oC and 1.00 atm of pressure, is the change in entropy of the surroundings/environment negative, zero, or positive?
When water vapour condenses at 100oC and 1.00 atm of pressure, is the change in entropy of the surroundings/environment negative, zero, or positive?
When water vapour condenses at 100oC and 1.00 atm of pressure, is the change in entropy of the surroundings/environment negative, zero, or positive?
(A) Predict whether the change in entropy (ΔS) is positive, negative or near zero for the following processes at 298K. Provide a molecular level explanation or justification for your prediction. (B) Calculate the change in entropy (ΔS) for the following processes at 298K. i. H2O (s) → H2O (l), melting of ice. ii. Formation reaction for steam (water vapor, H2O (g)). iii. C3H8 (l) → C3H8 (aq), Liquid propane going to aqueous propane. iv. The hydrolysis of the dipeptide glycylglycine...
K: When water vapor condenses at 100oC and a pressure of 1.00 atm, the change in the entropy of the universe is negative, zero, or positive? L: When water vapor condenses at 100oC and a pressure of 1.00 atm, the change in the entropy of the surroundings is negative, zero, or positive?