Interpretation:
The
Concept Introduction:
The change in
The values of change in
Also, the value of
The reaction is spontaneous if the value of
The free energy may become more positive or more negative on increasing the temperature depending upon the values of enthalpy and entropy changes.
(a)
To determine:
The values of
Step 1:
To determine:
The values of
Step 2:
To determine:
The values of
Step 3:
To determine: The values of
(b)
To determine:
The reactions which are spontaneous out of the given reactions.
(c)
To determine:
The change in free energies of the reactions given in part (a) with an increase in temperature.

Want to see the full answer?
Check out a sample textbook solution
Chapter 19 Solutions
MAST F/ CHEM: THE CENTRAL SCI CODE ALON
- 5) Who was responsible for the first model of the atom that included electrons? a. Dalton b. Thomson c. Bohr d. Rutherford 6) Which of the following rate laws is a fourth-order reaction? a. r = k[X][Y]²[Z] b._r= k[X]²[Y]³ C. r = k[X][Y]² d._r= k[X][Y]²[Z]ª 7) The activation energy of a particular reaction will decrease if: a. A catalyst is used. b. Temperature is increased. c. Reactant concentration is increased. d. All of the abovearrow_forwardpls helparrow_forwardState the reason why compound A (m.p. 99-100°C) is heated under vacuum.1. So that the sample heating temperature is not too high when heated under vacuum.2. So that the temperature is higher than the melting point of compound A.3. So that cold water is not required in the sublimator.arrow_forward
- To find the theoretical % yield of a given reaction:1. actual amount obtained once crystallized2. (actual amount obtained / theoretical amount) x 1003. maximum amount of product that can be obtained / amount of initial reactantarrow_forwardThe reason activated carbon decolorizes and purifies a product is:1. It helps dissolve the product and then recrystallize it.2. It reacts with impurities in the product and removes them.3. It retains impurities by adsorption, purifying the product.arrow_forwardThe principle of a rotary evaporator is the same as that of:1. vacuum distillation2. reflux3. fractional distillationarrow_forward
- Anhydrous MgSO4 is used to:1. Form a salt with the compound dissolved in the solution2. Remove water from a solution3. Neutralize a solutionarrow_forwardDistillation under reduced pressure or vacuum consists of:1. Achieving distillation under anhydrous conditions.2. Causing a decrease in the distillation rate.3. Decreasing the pressure to lower the boiling point of the compound to be distilled.arrow_forwardAt the end of the silica gel production process, color changes occur during drying. Explain these color changes.arrow_forward
- If CoCl2/H2O is dissolved in a mixture of H2O and concentrated HCl in a test tube, the tube is gently heated over a flame to approximately 80°C and then cooled externally. Explain the color changes that occur.arrow_forwardWhen producing silica gel, color changes occur at the end of the drying process. Explain these color changes.arrow_forwardDesign experiments in UV-Vis to figure the optimal mole ratio of copper (1:1, 2:1, 3:1 and etc)versus ethambutol using all necessary chemicals including dihydrochloride and copper nitrate hemipentahydrate and sodium hydroxide. Show how UV-Vis absorbance and maximum wavelength would change in responsearrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY





