Introductory Chemistry: A Foundation
9th Edition
ISBN: 9781337399425
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 10, Problem 17ALQ
For each of the following situations a−c. use the following choices i−iii to complete the statement “The final temperature of the water should be”
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Chapter 10 Solutions
Introductory Chemistry: A Foundation
Ch. 10.1 - at if energy were not conserved? How would this...Ch. 10.4 - u are calculating in a chemistry problem. What if...Ch. 10.5 - ercise 10.1 How many calories of energy correspond...Ch. 10.5 - ercise 10.2 Calculate the joules of energy...Ch. 10.5 - ercise 10.3 A 5.63-g sample of solid gold is...Ch. 10.5 - ercise 10.4 A 2.8-g sample of pure metal requires...Ch. 10.6 - Prob. 10.5SCCh. 10.7 - at if Hess’s law were not true? What are some...Ch. 10.7 - Prob. 10.6SCCh. 10.9 - Prob. 1CT
Ch. 10.10 - at if the first law of thermodynamics was true,...Ch. 10 - Prob. 1ALQCh. 10 - friend of yours reads that the process of water...Ch. 10 - ou place hot metal into a beaker of cold water. ol...Ch. 10 - Prob. 4ALQCh. 10 - Prob. 5ALQCh. 10 - xplain why aluminum cans make good storage...Ch. 10 - n Section 10.7, two characteristics of enthalpy...Ch. 10 - Prob. 8ALQCh. 10 - hat is meant by the term driving forces? Why are...Ch. 10 - Prob. 10ALQCh. 10 - Explain in your own words what is meant by the...Ch. 10 - Prob. 12ALQCh. 10 - What if energy was not conserved? How would this...Ch. 10 - The internal energy of a system is said to be the...Ch. 10 - Hydrogen gas and oxygen gas react violently to...Ch. 10 - Consider four 100.0-g samples of water, each in a...Ch. 10 - For each of the following situations ac. use the...Ch. 10 - Prob. 18ALQCh. 10 - Does the entropy of the system increase or...Ch. 10 - Prob. 20ALQCh. 10 - Prob. 1QAPCh. 10 - Prob. 2QAPCh. 10 - Prob. 3QAPCh. 10 - Prob. 4QAPCh. 10 - Prob. 5QAPCh. 10 - n Fig. 10.1, what kind of energy does ball A...Ch. 10 - Prob. 7QAPCh. 10 - f you spilled a cup of freshly brewed hot tea on...Ch. 10 - Prob. 9QAPCh. 10 - Prob. 10QAPCh. 10 - In studying heat flows for chemical processes,...Ch. 10 - When a chemical system evolves energy, where does...Ch. 10 - The combustion of methane, is an exothermic...Ch. 10 - Are the following processes exothermic or...Ch. 10 - What do we mean by thermodynamics? What is the...Ch. 10 - Prob. 16QAPCh. 10 - Prob. 17QAPCh. 10 - If q for a process is a positive number, then the...Ch. 10 - For an endothermic process, q will have a...Ch. 10 - A system absorbs 215 kJ of heat, and 116 kJ of...Ch. 10 - Prob. 21QAPCh. 10 - Prob. 22QAPCh. 10 - If 8.40 kJ of heat is needed to raise the...Ch. 10 - If it takes 654 J of energy to warm a 5.51-g...Ch. 10 - Prob. 25QAPCh. 10 - Prob. 26QAPCh. 10 - Covert the following numbers of kilojoules into...Ch. 10 - Prob. 28QAPCh. 10 - Prob. 29QAPCh. 10 - Prob. 30QAPCh. 10 - .5 kJ of heat is applied to a 1012-g block of...Ch. 10 - What quantity of heat energy must have en applied...Ch. 10 - If 125 J of heat energy is applied to a block of...Ch. 10 - If 100. J of heat energy is applied to a 25-g...Ch. 10 - What quantity of heat is required to raise the...Ch. 10 - Prob. 36QAPCh. 10 - The “Chemistry in Focus” segment Nature Has Hot...Ch. 10 - In the “Chemistry in Focus” segment Firewalking:...Ch. 10 - Prob. 39QAPCh. 10 - A _________ is a device used to determine the heat...Ch. 10 - The enthalpy change for the reaction of hydrogen...Ch. 10 - For the reaction kJ per mole of formed. Calculate...Ch. 10 - Prob. 43QAPCh. 10 - When ethanol (grain alcohol, is burned in oxygen,...Ch. 10 - Prob. 45QAPCh. 10 - Prob. 46QAPCh. 10 - Prob. 47QAPCh. 10 - Prob. 48QAPCh. 10 - Prob. 49QAPCh. 10 - Prob. 50QAPCh. 10 - Prob. 51QAPCh. 10 - Prob. 52QAPCh. 10 - Prob. 53QAPCh. 10 - Prob. 54QAPCh. 10 - Prob. 55QAPCh. 10 - Prob. 56QAPCh. 10 - Prob. 57QAPCh. 10 - Prob. 58QAPCh. 10 - Prob. 59QAPCh. 10 - Prob. 60QAPCh. 10 - If a reaction occurs readily but has an...Ch. 10 - Prob. 62QAPCh. 10 - Prob. 63QAPCh. 10 - Prob. 64QAPCh. 10 - Which of the following is an endothermic process?...Ch. 10 - Prob. 66APCh. 10 - Prob. 67APCh. 10 - Calculate the amount of energy required (in...Ch. 10 - If takes 1.25 kJ of energy to heat a certain...Ch. 10 - What quantity of heat energy would have to be...Ch. 10 - The specific heat capacity of gold is 0.13 J/g °C....Ch. 10 - Calculate the amount of energy required (in...Ch. 10 - If 10. J of heat is applied to 5.0-g samples of...Ch. 10 - A 50.1)-g sample of water at 100. °C is poured...Ch. 10 - A 25.0-g sample of pure iron at 85 °C is dropped...Ch. 10 - If 7.24 kJ of heat is applied to a 952-g block of...Ch. 10 - For each of the substances listed in Table 10.1,...Ch. 10 - A system releases 213 kJ of heat and has a...Ch. 10 - Prob. 79APCh. 10 - Calculate the enthalpy change when 5.00 g of...Ch. 10 - Prob. 81APCh. 10 - Prob. 82APCh. 10 - It has been determined that the body can generate...Ch. 10 - Prob. 84APCh. 10 - Prob. 85CPCh. 10 - The specific heat capacity of graphite is 0.71 J/g...Ch. 10 - A swimming pool, 10.0 in by 4.0 m, is filled with...Ch. 10 - Prob. 88CPCh. 10 - Prob. 89CP
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- When 7.11 g NH4NO3 is added to 100 mL water, the temperature of the calorimeter contents decreases from 22.1 C to 17.1 C. Assuming that the mixture has the same specific heat as water and a mass of 107 g, calculate the heat q. Is the dissolution of ammonium nitrate exothermic or endothermic?arrow_forwardShould heat be added as a reactant or as a product to each of the following equations for chemical reactions based on the given thermicity for the reaction? a. 2SO2 + O2 2SO3 (exothermic) b. N2 + O2 2NO (endothermic) c. CH4 + 2O2 CO2 + 2H2O (exothermic) d. 2H2O + 2Cl2 4HCl + O2 (endothermic)arrow_forwardou place hot metal into a beaker of cold water. ol type='a'> Eventually what is true about the temperature of the metal compared to that of the water? Explain why this is true. i>Label this process as endothermic or exothermic if we consider the system to be the metal. Explain. the water. Explain.arrow_forward
- 9.96 Most first aid "cold packs" are based on the endothermic dissolution of ammonium nitrate in water: NH4NO3(s)NH4+(aq)+NO3(aq) H= 25.69 kJ A particular cold pack contains 50.0 g of NH4NO3 and 125.0 g of water. When the pack is squeezed, the NH4NO3dissolves in the water. If the pack and its contents are initially at 24.0°C, what is the lowest temperature that this bag could reach? (Assume that the ammonium nitrate solution has a specific heat of 4.25J g-l K-l, and that the heat capacity of the bag itself is small enough to be neglected.)arrow_forwardA 21.3-mL sample of 0.977 M NaOH is mixed with 29.5 mL of 0.918 M HCl in a coffee-cup calorimeter (see Section 6.6 of your text for a description of a coffee-cup calorimeter). The enthalpy of the reaction, written with the lowest whole-number coefficients, is 55.8 kJ. Both solutions are at 19.6C prior to mixing and reacting. What is the final temperature of the reaction mixture? When solving this problem, assume that no heat is lost from the calorimeter to the surroundings, the density of all solutions is 1.00 g/mL, the specific heat of all solutions is the same as that of water, and volumes are additive.arrow_forwardHow much would the temperature of 275 g of water increase if 36.5 U of heat were added?arrow_forward
- Write a chemical equation for each process and classify each as reactant-favored or product-favored. (a) A puddle of water evaporates on a summer day. (b) Silicon dioxide (sand) decomposes to the elements Silicon and oxygen. (c) Paper, which is mainly cellulose (C6H10O5)n, bums at a temperature of 451 F. (d) A pinch of sugar dissolves in water at room temperature.arrow_forwardWhich molecule, HF, HCl, HBr, or HI, has the strongest chemical bond?arrow_forwardHypothetical elements A2 and B2 react according to the following equation, forming the compound AB. A2(aq)+B2(aq)2AB(aq);H=+271kJ/mol If solutions A2(aq) and B2(aq), starting at the same temperature, are mixed in a coffee-cup calorimeter, the reaction that occurs is a exothermic, and the temperature of the resulting solution rises. b endothermic, and the temperature of the resulting solution rises. c endothermic, and the temperature of the resulting solution falls. d exothermic, and the temperature of the resulting solution falls. e exothermic or endothermic, depending on the original and final temperatures.arrow_forward
- A 29.1-mL sample of 1.05 M KOH is mixed with 20.9 mL of 1.07 M HBr in a coffee-cup calorimeter (see Section 6.6 of your text for a description of a coffee-cup calorimeter). The enthalpy of the reaction, written with the lowest whole-number coefficients, is 55.8 kJ. Both solutions are at 21.8C prior to mixing and reacting. What is the final temperature of the reaction mixture? When solving this problem, assume that no heat is lost from the calorimeter to the surroundings, the density of all solutions is 1.00 g/mL, and volumes are additive.arrow_forwardHydrogen chloride gas dissolves in water to form hydrochloric acid (an ionic solution). HCl(g)H2OH+(aq)+Cl(aq) Find H for the above reaction. The data are given in Table 6.2.arrow_forwardIndicate which of the following processes are reversible. (a) Nitrogen gas expands into a vacuum. (b) Dry ice, CO2(s), sublimes at 25 C and 1.0 atm. (c) Energy as heat is added to a mixture of ice and water at 0 C, causing some of the ice to melt. (d) Methanol and ethanol mix forming a homogeneous solution.arrow_forward
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