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for the dissolution of sodium nitrate, explain why the sign of delta S must be positive...
In the Thermodynamics and Equilibrium lab, you found that the sign of the experimentally determined value for AG° for the dissolution of borax (sodium tetraborate) in water was positive. Is this process spontaneous? If not, why does borax dissolve in water? Explain your reasoning. (Hint: think about the difference(s) between AGo and AG 4.
For melting water at 25 C, what is the sign of delta S for system, surroundings and universe? I'm thinking delta S would be positive for the system, but what about the others?
1. Is the dissolution process studied today, NaNO, (s) Na+ (aq) + NO, (aq) spontaneous or nonspontaneous? How can you tell? What is the sign of AG? 2. Using the class's mean value for AH, and the Gibbs-Helmholtz equation, estimate the value for AS for the dissolution process. (See Calculations section.) 3. Based on your observation about the spontaneity of the reaction and the sign of AH, is the value of AS that you calculated a minimum or a maximum?...
Post lab for estimating entropy for the dissolution of a salt. I
desperately need help with 3 and 4 please
Is the dissolution process studied today, NaNo, (s) → Na+ (aq) + NO3-(aq) spontaneous or nonspontaneous? How can you tell? What is the sign of ΔΟ? 1. Using the class's mean value for ΔH and the Gibbs-Helmholtz equation, estimate the value for as for the dissolution process. (See Calculations section.) 2. Based on your observation about the spontaneity o the...
Need help on this
question.Thank you
(a) Predict the sign of Delta S for each of the following changes. Explain your response: (b) Given the following reaction: HOBr_(aq) + Br^-_(aq) Br_2(g) + OH^-_(aq) calculate the equilibrium constant for the reaction under standard pressure at 298 K given Delta H^Compositefunction = 15.51 (kJ/mol) and Delta S^Compositefunction = 111.89 (J/(mol K)).
Explain briefly what the power ratio means and why the delta dBs, when the delta dB is positive, zero, or negative, correspond to a power ratio that is greater than 1, equal to 1, or less than 1, respectively.
5. What are Goodell 's sign, Chadwick's sign, and Hegar's sign? 6. Explain the difference between uterine souffle and funic souffle. 7. Describe how progesterone affects the urinary system during pregnancy. Leep the loy inside te stemacd 8. Why does pregnancy demand a large supply of iron? 9. In general, what are the exercise recommendations from the eighth week of pregnancy through delivery?
Delta S is positive for the reaction ____. A) CaO (s) + CO2 (g)=>CaCO3 B) N2(g) + 3H2(g)=>2NH3(g) C) 2SO3(g) => 2SO2(g)+O2(g) D) Ag+(aq) + Cl- (aq)=> AgCl(s) E) H2) (l)=> H2O(s) I know that the answer is C, but I need a detailed explanation as to why the answer is C.
In this Answer, why we put positive sign between these
number (25t + 0 )?
In the formula we have native but why this become
positive in amswer ?
Skill-Assessment Exercise 4.3 PROBLEM: For each of the following transfer functions, write, by inspection, the general form of the step response: 625 d. G(s) 625 ANSWERS A+B cos (25t + d. ct) 3. Undamped responses Poles: Two imaginary at tjon Natural response: Undamped sinusoid with radian frequency equal to the imaginary...
Determine whether ∆H, ∆S and ∆G are positive, negative or zero for the following conditions: 1) a solution of methanol and hexane is prepared. 2) Sodium nitrate dissolves in water to a concentration lower than its solubility. 3) Hydrogen molecules dissociate into atoms at 300K. Explain your reasons for each decision, if there is insufficient data suggest extra data or information that may be needed.