What are the signs (+ or -) for delta H, delta S, and -T(delta S) which are required to produce the following signs (+ or -) of delta G. Think about the equation delta G = delta H - T(delta S).
1. If delta G is negative
2. If delta G is either positive or negative (there are 2 solutions)
3. If delta G is negative
What are the signs (+ or -) for delta H, delta S, and -T(delta S) which...
What is delta S? Predict the signs of Delta S and Delta H for the freezing of water into ice at 273 K. a. Delta H > 0 and Delta S < 0 b. delta H = 0 and Delta S > 0 c. Delta H < 0 and Delta S < 0 d. Delta H > 0 and Delta S = 0 e. Delta H < 0 and Delta S > 0
Reaction A: This reaction is always spontaneous but proceeds faster at temperature is below 45°C Delta H: Positive? Negative? Unknown? Delta S: Positive? Negative? Unknown?Reaction B: this reaction is exothermic and proceed slower at temperature is below 19°CDelta H: Positive? Negative? Unknown? Delta S: Positive? Negative? Unknown?Reaction C: crystallization of a pure compound is spontaneous only below -34°CDelta H: Positive? Negative? Unknown? Delta S: Positive? Negative? Unknown?
In terms of the algebraic signs of delta H and delta S, under which of the following circumstances will a change be spontaneous? a) at all temperatures? b) at low temperatures but not high temperatures? c) at high temperatures but not at low temperatures?
Question 5 The spontaneity of a reaction depends both on the enthalpy change, Delta H, and entropy change, Delta S. Reactions that release energy produce more stable products, and the universe tends toward disorder. Thus, an exothermic reaction with a positive entropy change will always be spontaneous. Mathematically, this relationship can be represented as where Delta G is the change in Gibbs free energy and T is the Kelvin temperature. If Delta G is negative, then the reaction is spontaneous....
What is the meaning of delta H (change in enthalpy), delta S (change in entropy) and delta G (change in Gibbs free energy) as it relates to mixing two liquids together? In what situations is each of these variables negative/positive?
From the values of delta H and delta S, predict which of the following reactions would be spontaneous at 26C: Reaction A: delta H = 10.5 kJ/mol, delta S = 30.0 J/K*mol Reaction B: delta H = 1.8 kJ/mol, delta S = -113 J/K*mol If either of the reactions is nonspontaneous, can it (they) become spontaneous? If either of the reactions is nonspontaneous but can become spontaneous, at what temperature might it become spontaneous? Please explain how to do this!
Predict the signs of delta H (Enthalpy) and delta S (Entropy) for the evaporation of water at 85 C.
Here are the delta H, delta S and delta G values from my textbook: (first value is delta H, second value is delta S, third is delta G) CO2: -393.5 , 213.6 , -394.4 CH4: -75, 186, -51 CO : -110.5 , 197.9 , -137.3 CH3COOH : -484.2 , 159.8 , -389.45 CH3OH : -238 , 126.8 , -166.3 Q3. Using the thermodynamics data given in the appendix, calculate ΔH·AS) and ΔG, for the following reactions that produce acetic acid:...
T=20 degrees Celsius, T= 273.13+20=293.13 Delta G= Delta H - T×Delta S. 1.What is delta S Using the tables i have provided? 2. What is the significance of the sign Delta S? *PLEASE SHOW ALL CALCULATIONS* uBBOsty Part III. Entropy Calculations 1. Use your average AHo and A Go values in The Gibbs-Helmholtz equation (1) to calculate and average ASo value. Also, incorporate your ± values to calculate the precision for Δ. What is the significance of the sign for...
Propose a molecular level explanation for the observed signs delta h and delts s are negactive why were they?