General, Organic, & Biological Chemistry
3rd Edition
ISBN: 9780073511245
Author: Janice Gorzynski Smith Dr.
Publisher: McGraw-Hill Education
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Chapter 6.2, Problem 6.5P
Using the values in Table 6.2, give
More Practice: Try Problems 6.25, 6.26
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6) Consider:
N,H, + 2H,0, → N, + 4H,0
a) Draw out the Lewis structures for each of the molecules in the above reaction.
[C5]
b) Use bond enthalpies to determine the enthalpy of reaction, in kJ/mol (answer to a whole
number answer).
[T3]
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1 You are given a piece of pie straight out of the oven, so the crust and the filling are at the same temperature. You sample a piece of crust with piece of filling in your mouth, you burn your tongue. You burn your tongue because the filling has a much greater heat capacity.
A) True
B) False
[References]
It has been determined that the body can generate 5500 kJ of energy during one hour of strenuous exercise. Perspiration is the body's mechanism for
eliminating this heat. What mass of water would have to be evaporated through perspiration to rid the body of the heat generated during 2 hours of
exercise? (The heat of vaporization of water is 40.6 kJ/mol.)
Mass
kg
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Chapter 6 Solutions
General, Organic, & Biological Chemistry
Ch. 6.1 - Prob. 6.1PCh. 6.1 - Prob. 6.2PCh. 6.1 - Prob. 6.3PCh. 6.1 - Prob. 6.4PCh. 6.2 - Using the values in Table 6.2, give H for each...Ch. 6.2 - Prob. 6.6PCh. 6.2 - Answer the following questions using the given...Ch. 6.2 - Given the H and balanced equation in Sample...Ch. 6.2 - Prob. 6.9PCh. 6.3 - Prob. 6.10P
Ch. 6.4 - Consider the reaction of ozone (O3) with nitrogen...Ch. 6.4 - Draw an energy diagram for an uncatalyzed...Ch. 6.5 - Identify the forward and reverse reactions in each...Ch. 6.5 - Write the expression for the equilibrium constant...Ch. 6.5 - Consider the reversible reaction AB, with K=1....Ch. 6.5 - Given each equilibrium constant, state whether the...Ch. 6.5 - Consider the following reaction:...Ch. 6.5 - Calculate the equilibrium constant for each...Ch. 6.5 - Prob. 6.19PCh. 6.6 - Prob. 6.20PCh. 6.6 - Prob. 6.21PCh. 6.6 - Prob. 6.22PCh. 6.6 - Prob. 6.23PCh. 6.6 - Prob. 6.24PCh. 6 - Prob. 6.25PCh. 6 - Prob. 6.26PCh. 6 - Prob. 6.27PCh. 6 - Prob. 6.28PCh. 6 - Prob. 6.29PCh. 6 - Prob. 6.30PCh. 6 - Prob. 6.31PCh. 6 - Prob. 6.32PCh. 6 - Prob. 6.33PCh. 6 - Prob. 6.34PCh. 6 - Prob. 6.35PCh. 6 - Prob. 6.36PCh. 6 - Prob. 6.37PCh. 6 - Prob. 6.38PCh. 6 - Prob. 6.39PCh. 6 - Prob. 6.40PCh. 6 - Prob. 6.41PCh. 6 - Ammonia ( NH3 ) decomposes to hydrogen and...Ch. 6 - Prob. 6.43PCh. 6 - Ethanol ( C2H6O ), a gasoline additive, is formed...Ch. 6 - Prob. 6.45PCh. 6 - Prob. 6.46PCh. 6 - Prob. 6.47PCh. 6 - Prob. 6.48PCh. 6 - Draw an energy diagram for the following reaction...Ch. 6 - Prob. 6.50PCh. 6 - Prob. 6.51PCh. 6 - Explain why a high energy of activation causes a...Ch. 6 - State two reasons why increasing temperature...Ch. 6 - Why does decreasing concentration decrease the...Ch. 6 - Prob. 6.55PCh. 6 - Prob. 6.56PCh. 6 - Which of the following affect the rate of a...Ch. 6 - Prob. 6.58PCh. 6 - How does a catalyst affect each of the following:...Ch. 6 - What is the difference between a catalyst and an...Ch. 6 - Prob. 6.61PCh. 6 - Consider the representation depicted in the...Ch. 6 - For each value, are the reactants or products...Ch. 6 - Prob. 6.64PCh. 6 - Prob. 6.65PCh. 6 - Prob. 6.66PCh. 6 - Prob. 6.67PCh. 6 - Prob. 6.68PCh. 6 - Prob. 6.69PCh. 6 - Consider three different equilibrium mixtures...Ch. 6 - Write an expression for the equilibrium constant...Ch. 6 - Write an expression for the equilibrium constant...Ch. 6 - Prob. 6.73PCh. 6 - Use each expression for the equilibrium constant...Ch. 6 - Prob. 6.75PCh. 6 - Consider the following reaction:...Ch. 6 - Prob. 6.77PCh. 6 - Consider the following reaction. H2(g)+I2(g)2HI(g)...Ch. 6 - Prob. 6.79PCh. 6 - Prob. 6.80PCh. 6 - Consider the reaction of N2(g)+O2(g)2NO(g). What...Ch. 6 - Consider the reaction of H2(g)+F2(g)2HF(g). What...Ch. 6 - Prob. 6.83PCh. 6 - Consider the reversible reaction ABA+B, shown at...Ch. 6 - Consider the endothermic conversion of oxygen to...Ch. 6 - Consider the exothermic reaction:...Ch. 6 - Consider the exothermic reaction:...Ch. 6 - Consider the endothermic reaction:...Ch. 6 - Consider the gas-phase reaction of ethylene...Ch. 6 - Methanol (CHO), which is used as a fuel in race...Ch. 6 - Prob. 6.91PCh. 6 - How does a catalytic converter clean up automobile...Ch. 6 - Prob. 6.93PCh. 6 - The reaction of salicylic acid with acetic acid...Ch. 6 - Prob. 6.95PCh. 6 - Prob. 6.96PCh. 6 - Prob. 6.97PCh. 6 - Prob. 6.98PCh. 6 - Prob. 6.99CPCh. 6 - Prob. 6.100CP
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- 1N2 + 3H2 -----> 2NH3 Diatomic nitrogen has a triple bond. (946) Diatomic hydrogen hs a single bond. (436) The three bonds in ammonia are single bonds. (390) The bond energies are given. Determine the formula to find the heat of reaction. a. (1)(+946) + (3)(+436)+(2)(-390) b. (3)(+946) + (3)(+436)+(3)(-390) c. (1)(-946) + (3)(-436)+(2)(+390) d. (1)(-946) + (1)(-436)+(3)(+390) e. (3)(-946) + (3)(-436)+(3)(+390)arrow_forward[References] It has been determined that the body can generate 5500 k) of energy during one hour of strenuous exercise. Perspiration is the body's mechanism for eliminating this heat. What mass of water would have to be evaporated through perspiration to rid the body of the heat generated during 2 hours of exercise? (The heat of vaporization of water is 40.6 kJ/mol.) Mass kg Submit Answer Try Another Version 2 item attempts remainingarrow_forwardTry Again Your answer is incorrect. • Row 1: Your answer is incorrect. • Row 2: Your answer is incorrect. • Row 4: Your answer is incorrect. Consider a hypothetical chemical reaction: A+B C+D (In this equation A, B, C and D stand for some unknown chemical formulas.) Here is an energy diagram for the reaction: energy (kJ/mol) 400 300- 200 100. 0 A + B reaction coordinate Use the energy diagram to answer these questions. What is the heat of reaction? C + D Is the reaction exothermic or endothermic? Can you determine the activation energy? Can you determine the activation energy of the reverse reaction? C+DA+B 250 kJ/mol Exothermic Endothermic Neither Yes, it's 150 kJ/mol No. Yes, it's 100 kJ/mol No.arrow_forward
- Check ALL that are true of exothermic reactions. U They release heat AH is negative AH is positive they absorb heat ORAD MOITAMROR AETOV 3TWATOV J30 HDAMRORAI 30 ATBCR MacBook Air 80 D00 DII F2 F3 F4 F5 F6 F7 F8arrow_forwardReview I Constants I Periodic Table Part A In the following experiment, a coffee-cup calorimeter containing 100 mL of H, 0 is used. The initial temperature of the calorimeter is 23.0 °C. If 3.50 g of CaCl, is added to the calorimeter, what will be the final temperature of the solution in the calorimeter? The heat of solution AHoln of CaCl, is -82.8 kJ/mol. Assume that the specific heat of the solution formed in the calorimeter is the same as that for pure water: C, = 4.184 J/g °C. Express your answer with the appropriate units. > View Available Hint(s) HA Value Units Submit < Return to Assignment Provide Feedbackarrow_forwardHere's the enthalpy diagram for H-H -> 2H and 2H -> H-H Which position below would represent H₂? Enthalpy A A O It could be either A or B B B Reaction Progress O You cannot predict this information based on what is given 4arrow_forward
- QUESTION 2 Use the table below to determine ΔH for the following reaction H 2C=CH 2(g) + F 2(g) ↔ CH 2FCH 2F(g) Bond Energies, kJ/mol Single Bonds H C N O S F Cl Br I H 432 C 411 346 N 386 305 167 O 459 358 201 142 S 363 272 --- --- 286 F 565 485 283 190 284 155 Cl 428 327 313 218 255 249 240 Br 362 285 243 201 217 249 216 190 I 295 213 --- 201 --- 278 208 175 149 Multiple Bonds C=C 602 C=N 615 C=O 799 C≡C 835 C≡N 887 C≡O 1072 N=N 418 N=O 607 S=O (in SO2) 532 N≡N 942 O2 494 S=O (in SO3) 469 Key Concept: ΔH° rxn = ∑ΔH ° bonds broken - ∑ΔH ° bonds formedarrow_forwardPart A Enter a balanced chemical equation for the combustion of gaseous methanol. Express your answer as a chemical equation. ΑΣφ Request Answer Submit Common bond energies The table below lists the average bond energies that you would need to determine reaction enthalpies. Bond Bond energy (kJ/mol) Bond energy (kJ/mol) Bond C-C 347 C-H 414 C=C 611 C=C 837 Н-Н 436 C-0 360 N=N 418 N-H 389 N=N 946 О-Н 464 C=0 0=0 498 736* * Bond energy in CO2 is equal to 799 kJ/mol. Part B Use bond energies to calculate the enthalpy of combustion of methanol in kJ/mol. Express your answer as an integer and include the appropriate units. НА Value Units ΔΗx = Submit Request Answerarrow_forwardQuestion 15 How does the presence of a catalyst affect the enthalpy change of a reaction? 3.4 p O It depends on if the reaction is exothermic or endothermic A catalyst does not affect the enthalpy change of a reaction A catalyst increases the enthalpy change of a reaction O A catalyst increase the enthalpy change for the forward reaction but reduces it for the reverse reaction O A catalyst decreases the enthalpy change of a reactionarrow_forward
- Correlate the fuel values and caloric values calculated in Problem-Solving Example 4.15 with the relative number of oxygen atoms per molecule. Provide a nanoscale explanation for any correlation you find.arrow_forwardExercise 9.42 Enhanced with Feedback and Hints MISSED THIS? Watch KCV 9.4, IWE 9.2; Read Section 9.4. You can click on the Review link to access the section in your e Text. Part A How much heat is required to warm 1.30 kg of sand from 30.0 °C to 100.0 °C? Express the heat in joules to three significant figures. » View Available Hint(s) ΑΣφ Jarrow_forwardMyLab and Mastering The heat of reaction, AH, is the amount of heat absorbed or released during a chemical reaction. It is calculated as the difference in energy of the products and the reactants. Figure Energy diagram A C Progress of reaction 1 of 1 > D Part B ✓ Correct Notice in the diagram that the energy of the products is higher than the energy of the reactants. Therefore, we know that this is an endothermic reaction with a positive AH value. The energy diagram shown represents the chemical reaction between solid ammonium chloride and solid barium hydroxide octahydrate: energy absorbed=11.84 2NH4Cl(s) + Ba(OH)2 8H₂O(s)→2NH3(aq) + BaCl2 (aq) + 10H₂O (1) The AH for this reaction is 54.8 kJ. How much energy would be absorbed if 24.7 g of NH4Cl reacts? Express your answer with the appropriate units. ► View Available Hint(s) Submit Provide Feedback E Course Home μA kJ Previous Answers Request Answer P Pearson X Incorrect; Try Again; 5 attempts remaining Review | Constants | Periodic…arrow_forward
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