Homework Answers
Post one more question to get the remaining answers.
1) PCl5 ---- PCl3 + Cl2
Change in number of moles of gaseous substance = 1
Hence the entropy of the reaction will be positive
2) Mg(s) + Cl2 ----> MgCl2(s)
Change in number of moles of gaseous substance = -1
Hence the entropy of the reaction will be negative
3) I2(g) ------ 2I(g)
Change in number of moles of gaseous substance = 1
Hence the entropy of the reaction will be positive
4) H2O(g) ----- H2O(l)
Change in number of moles of gaseous substance = -1
Hence the entropy of the reaction will be negative
Add Answer to:
Predict the sign of as in the system for each of the following reaction Circle appropriate...
2. Predict the sign of ASsys for each of the following reactions. Write "positive" or "negative"....
2. Predict the sign of ASsys for each of the following reactions. Write "positive" or "negative". a. PСls (s) → PCI; (1) + Cl2 (g) b. CH4 (g) + 2 O2 (g) → CO2 (g) + 2 H20 (1) c. Mg(s) + Cl2 (g) MgCl2 (s). d. CH1206 (8) + 602 (g) 6CO2 (g) + 6H20 (g)
Predict the sign of the entropy change, Delta S degree, for each of the reaction displayed....
Predict the sign of the entropy change, Delta S degree, for each of the reaction displayed. Drag the appropriate items to their respective bins. Calculate the standard entropy change for the reaction 2Na(s) + CI_2 (g) rightarrow 2NaCl(s) using the data from the following table: Express your answer to four significant figures and include the appropriate units.
Predict the direction for each of the following acid-base reactions. Circle the right choice. a. H_3O^+...
Predict the direction for each of the following acid-base reactions. Circle the right choice. a. H_3O^+ + CO_3^2- HCO_3^- + H_2O Forward/Backward b. NO_3^- + HF HNO_3 + F^- Forward/Backward c. HS^- + NH_4^+ H_2S + NH_3 Forward/Backward
A reaction that has a positive AH and a positive AS will be spontaneous at high...
A reaction that has a positive AH and a positive AS will be spontaneous at high temperatures spontaneous at low temperatures spontaneous at all temperatures nonspontaneous at all temperatures QUESTION 6 Which of the following statements is FALSE? Keg for a reaction written in reverse is the reciprocal of the key for the forward reaction A reaction quotient (Q) larger than Keq means that the reaction will shift toward reactants Chemical equilibrium indicates that reactants and products are present in...
Predict the sign of AS for each of these changes. a) O2 (g) → O2 (aq)...
Predict the sign of AS for each of these changes. a) O2 (g) → O2 (aq) b) C.H. (8) → C.H. (1) - c) C(s) + CO2(g) → 2 CO (g) d) C12H22011 (8) ► 12H2011 (aq) e) 2 NO2(g) → N.04 (g) 2) Indicate the correct type of process for the following: Process Spontaneous Non-Spontaneous 1. Melting of ice cubes at -5°C and 1 atm pressure 2. Dissolution of sugar in a cup of hot coffee 3. Reaction of...
For the following equilibrium reaction, predict the direction of the equilibrium shift by specifying if each...
For the following equilibrium reaction, predict the direction of the equilibrium shift by specifying if each stress will cause the concentration of reactants or products to increase NH3(g)+H2O(l) ⇋ NH4+(aq)+OH−(aq) Drag the appropriate stresses to their respective bins. Adding NH4+(aq) Adding NH3(g) Adding OH-(aq) Removing NH4+(aq) Removing OH-(aq) Shifts in the direction of the reactants: Shift in the direction of the products:
Chapter 18 Thermodynamics Homework 1.Predict the sign of AS for each process: a) The boiling of water b)2HgO(s)-2Hg(I) + 02(s) c) CaCO, (s)CaO(s)+ CO (g) 2. Is the following process spontaneous o...
Chapter 18 Thermodynamics Homework 1.Predict the sign of AS for each process: a) The boiling of water b)2HgO(s)-2Hg(I) + 02(s) c) CaCO, (s)CaO(s)+ CO (g) 2. Is the following process spontaneous or nonspontaneous at a given temperature? NaNO,(s) ->NaNO,(aq) 3. If a reaction has ΔS < 0 and ΔΗ < 0 will the reaction always be spontaneous, spontaneous at low T, spontaneous at high T, or never spontaneous? 4.Consider this reaction: Calculate ΔG at 25 °C and determine whether the...
Part A Predict the sign of the entropy change, ΔS∘, for each of the reaction displayed. Drag the appropriate items to...
Part APredict the sign of the entropy change, ΔS∘, for each of the reaction displayed.Drag the appropriate items to their respective bins.Ag+(aq)+Cl−(aq)→AgCl(s)2KClO3(s)→2KCl(s)+3O2(g)2N2O(g)→2N2(g)+O2(g)2Mg(s)+O2(g)→2MgO(s)C7H16(g)+11O2(g)→7CO2(g)+8H2O(g)H2O(l)→H2O(g)Part BCalculate the standard entropy change for the reaction2Mg(s)+O2(g)→2MgO(s)using the data from the following table:SubstanceΔH∘f (kJ/mol)ΔG∘f (kJ/mol)S∘ [J/(K⋅mol)]Mg(s)0.000.0032.70O2(g)0.000.00205.0MgO(s)-602.0-569.627.00Express your answer to four significant figures and include the appropriate units.ΔS∘ =
Use LeCha^telier′s principle to predict whether each the following changes causes the system to shift in...
Use LeCha^telier′s principle to predict whether each the following changes causes the system to shift in the direction of products or reactants: HF(aq)+H2O(l)⇌F−(aq)+H3O+(aq) Part A adding some F−(aq) adding some a.in the direction of the reactants b.in the direction of the products Part B. removing some HF(aq) removing some in the direction of the products in the direction of the reactants SubmitRequest Answer Part C removing some H3O+(aq) removing some in the direction of the products in the direction of...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward reaction stops only the reverse reaction stops both the forward and reverse reactions stop the rate constants for the forward and reverse reactions are equal the rates of the forward and reverse reactions are equal 2. A chemical equilibrium may be established by starting a reaction with reactants only. d. any quantities of reactants and products. products only. e. all the above equal quantities...
2. Predict the sign of ASsys for each of the following reactions. Write "positive" or "negative". a. PСls (s) → PCI; (1) + Cl2 (g) b. CH4 (g) + 2 O2 (g) → CO2 (g) + 2 H20 (1) c. Mg(s) + Cl2 (g) MgCl2 (s). d. CH1206 (8) + 602 (g) 6CO2 (g) + 6H20 (g)
Predict the sign of the entropy change, Delta S degree, for each of the reaction displayed. Drag the appropriate items to their respective bins. Calculate the standard entropy change for the reaction 2Na(s) + CI_2 (g) rightarrow 2NaCl(s) using the data from the following table: Express your answer to four significant figures and include the appropriate units.
Predict the direction for each of the following acid-base reactions. Circle the right choice. a. H_3O^+ + CO_3^2- HCO_3^- + H_2O Forward/Backward b. NO_3^- + HF HNO_3 + F^- Forward/Backward c. HS^- + NH_4^+ H_2S + NH_3 Forward/Backward
A reaction that has a positive AH and a positive AS will be spontaneous at high temperatures spontaneous at low temperatures spontaneous at all temperatures nonspontaneous at all temperatures QUESTION 6 Which of the following statements is FALSE? Keg for a reaction written in reverse is the reciprocal of the key for the forward reaction A reaction quotient (Q) larger than Keq means that the reaction will shift toward reactants Chemical equilibrium indicates that reactants and products are present in...
Predict the sign of AS for each of these changes. a) O2 (g) → O2 (aq) b) C.H. (8) → C.H. (1) - c) C(s) + CO2(g) → 2 CO (g) d) C12H22011 (8) ► 12H2011 (aq) e) 2 NO2(g) → N.04 (g) 2) Indicate the correct type of process for the following: Process Spontaneous Non-Spontaneous 1. Melting of ice cubes at -5°C and 1 atm pressure 2. Dissolution of sugar in a cup of hot coffee 3. Reaction of...
Chapter 18 Thermodynamics Homework 1.Predict the sign of AS for each process: a) The boiling of water b)2HgO(s)-2Hg(I) + 02(s) c) CaCO, (s)CaO(s)+ CO (g) 2. Is the following process spontaneous or nonspontaneous at a given temperature? NaNO,(s) ->NaNO,(aq) 3. If a reaction has ΔS < 0 and ΔΗ < 0 will the reaction always be spontaneous, spontaneous at low T, spontaneous at high T, or never spontaneous? 4.Consider this reaction: Calculate ΔG at 25 °C and determine whether the...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward reaction stops only the reverse reaction stops both the forward and reverse reactions stop the rate constants for the forward and reverse reactions are equal the rates of the forward and reverse reactions are equal 2. A chemical equilibrium may be established by starting a reaction with reactants only. d. any quantities of reactants and products. products only. e. all the above equal quantities...
Most questions answered within 3 hours.
-
The time to complete a standardized exam is approximately normal
with a mean of 70 minutes...
asked 1 hour ago -
Two thousand randomly selected adults were asked whether or not
they have ever shopped on the...
asked 2 hours ago -
Estimate the diffusion coefficient for methyl phenyl sulfide in
water at 25 degrees Celcius.
asked 1 hour ago -
10.g of a certain metal absorb 40. cal of heat and the temperature
is abserved to...
asked 2 hours ago -
How many milliliters of 0.0695 M Ca( OH)
2would be required to exactly neutralize 176 mL...
asked 2 hours ago -
A telephone survey uses a random digit dialing machine to call
subjects. The random digit dialing...
asked 3 hours ago -
How can having too little or too much of a certain
protein cause problems for an...
asked 4 hours ago -
Assume a muscle has a PCSA = 20 cm2 and Lo = 12 cm. Assume it...
asked 6 hours ago -
What is the yield to maturity of a ten-year, $1,000 bond with a
5.2% coupon rate...
asked 7 hours ago -
A mass m = 5 kg is tied on one end of a rope and is...
asked 7 hours ago -
The Average sales price of single-family houses in Charlotte is
$210,000 with a standard deviation of...
asked 7 hours ago -
Target Costing
Laser Impressions, Inc., manufactures color laser printers.
Model J20 presently sells for $225 and...
asked 7 hours ago