Read the descriptions of physical or chemical changes in the table below. Then decide whether the change will be spontaneous, if you can.ChangeIs this change spontaneous?○ Yes.A chemical reaction between two liquids creates gaseous products.○ No.Can't decide with information given.During an endothermic chemical reaction, a gas is consumed and a liquidproduced.Yes.○ No.Can't decide with information given.During an exothermic chemical reaction, four moles of gaseous reactants areturned into two moles of gaseous products.Yes.No.Can't decide with information given.

1. chemical reactions between liquids can produce gaseous products. For instance, in an…

Answered: Read the descriptions of physical or…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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When 50.4 mL of 0.28 M AgNO3 and 20.8 mL of 0.28 M NaCI, both at 25.26°C, are mixed in a coffee-cup calorimeter, AgCl precipitates and the temperature of the mixture increases to 31.25°C. Calculate A H in kJ/mole of AgCl (s) produced during the reaction. (Assume that the total volume is the sum of the volumes and that the density and specific heat capacity of the solution are the same as for water: d 1.00 g/mL and c = 4.18 J/g°C). Enter AH in kJ/mol to 1 decimal place and without units.
Consider the two different systems, A and B, shown below. If there are 3 particles with a total energy of 12 J, which system would have more entropy and why? Question 21 options: System A has more entropy because it has greater separation between energy levels and hence more microstates than system B. System B has more entropy because it has more than two microstates, whereas System A only has two microstates possible. System A has more entropy because it has three microstates, whereas System B has less than three microstates possible. System B has more entropy because it has more than three microstates, whereas System A only has three microstates possible. System A has more entropy because it has more than one microstate, whereas System B only has one microstate possible.
Read the descriptions of physical or chemical changes in the table below. Then decide whether the change will be spontaneous, if you can. Change A gas condenses to a liquid, neither absorbing nor releasing heat. An exothermic chemical reaction between a solid and a liquid results in gaseous products. Two liquids mix, neither absorbing nor releasing heat. Is this change spontaneous? Yes. No. Can't decide with information given. ○ Yes. ○ No. Can't decide with information given. Yes. No. ○ Can't decide with information given.
Which one of the following reactions cannot proceed spontaneously as written at any temperature? Assume that ΔH°rxn does not depend on temperature. A. 2Cl2O(g) → 2Cl2(g) + O2(g) ΔH°rxn = –151 kJ B. 3O2(g) → 2O3(g) ΔH°rxn = +284 kJ C. COCl2(g) → CO(g) + Cl2(g) ΔH°rxn = +112 kJ D. 2C(s) + 2S(s) + O2(g) → 2COS(g) ΔH°rxn = –137 kJ E. N2O4(g) → 2NO2(g) ΔH°rxn = +171 kJ
Which process results in the increase in entropy of the universe?
State the First Law of Thermodynamics in your own words. Cite at least one example that applies to the First Law of Thermodynamics.
For the chemical reaction below, which statement is true about the reaction? N2H4 (1) + O2 (g) → N2 (g) + 2 H20 (g) AH° = -543 kJ-mol-1 A. Work is leaving the system. B. There is no work done in the reaction. C. Work is entering the system. D. The process is endothermic. Reset Selection
None
* Question Completion Status: L, Moving to another question will save this response. Question 19 of 20 Question 19 6 points Save Answer Consider the following reaction at 25°C if PPCI5 = 0.0029 atm, PPC13=0.27 atm, and PC12 = 0.40 atm PCI3 (1) + Cl2 (g) → PC15 AHO. 1xn = -87.9 kJ, AS = -0.1702 kJ/K rxn What is the value of Q? What is the value of AG? Is the reaction spontaneous under these conditions? Moving to another question will save this response. « »> 5:37 PM May the Fourth be with you B. 65°F T 5/5/2022
General Chemistry 4th Edition McQuarrie • Rock • Gallogly University Science Books presented by Macmillan Learning Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 24.0 atm. Calculate the work, w, if the gas expands against a constant external pressure of 1.00 atm to a final volume of 24.0 L. w = J Now calculate the work done if this process is carried out in two steps. 1. First, let the gas expand against a constant external pressure of 1.50 atm to a volume of 16.0 L. 2. From the end point of step 1, let the gas expand to 24.0 L against a constant external pressure of 1.00 atm. w = J
Read the descriptions of physical or chemical changes in the table below. Then decide whether the change will be spontaneous, if you can. Change During an endothermic chemical reaction, four moles of gaseous reactants are turned into two moles of gaseous products. A solid precipitates from a solution, releasing heat as it does so. A solid absorbs heat and turns to a gas. Is this change spontaneous? Yes. O No. O Can't decide with information given. O Yes. O No. O Can't decide with information given. O Yes. O No. O Can't decide with information given.
Automobile airbags contain solid sodium azide, NaN3, that reacts to produce nitrogen gas when heated, thus inflating the bag. 2 NaN3 (s) →→→ 2 Na(s) + 3 N₂(g) Calculate the value of work, w, for the system if 18.4 g NaN3 reacts completely at 1.00 atm and 22 °C. w= -1066 Incorrect J

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