Introductory Chemistry (6th Edition)
6th Edition
ISBN: 9780134302386
Author: Nivaldo J. Tro
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 3, Problem 56E
Interpretation Introduction
Interpretation:
The units of energy in
Concept introduction:
There are several units of energy. Joule is the SI unit of energy.
Joule, calorie, Cal and kilowatt hour are the units of energy.
The energy conversion factors are listed below:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionChapter 3 Solutions
Introductory Chemistry (6th Edition)
Ch. 3 - Which substance is a pure compound? a. Gold b....Ch. 3 - Which property of trinitrotoluene (TNT) is most...Ch. 3 - Which change is a chemical change? a. The...Ch. 3 - Q4. Which process is endothermic?
a. The burning...Ch. 3 - Q5. A 35-g sample of potassium completely reacts...Ch. 3 - Prob. 6SAQCh. 3 - Convert the boiling point of water (100.00C) to K....Ch. 3 - Q8. A European doctor reports that you have fever...Ch. 3 - Q9. How much heat must be absorbed by 125 g of...Ch. 3 - Q10. Substance A has a heat capacity that is much...
Ch. 3 - Define matter and list some examples.Ch. 3 - Prob. 2ECh. 3 - What are the three states of matter?Ch. 3 - Prob. 4ECh. 3 - Prob. 5ECh. 3 - Prob. 6ECh. 3 - Prob. 7ECh. 3 - Prob. 8ECh. 3 - 9. What is a mixture?
Ch. 3 - 10. What is the difference between a homogeneous...Ch. 3 - What is a pure substance?Ch. 3 - What is an element? A compound?Ch. 3 - What is the difference between a mixture and a...Ch. 3 - Prob. 14ECh. 3 - 15. What is the difference between a physical...Ch. 3 - Prob. 16ECh. 3 - Prob. 17ECh. 3 - Prob. 18ECh. 3 - Prob. 19ECh. 3 - What is chemical energy? List some examples of...Ch. 3 - Prob. 21ECh. 3 - 22. What is an exothermic reaction? Which has...Ch. 3 - 23. What is an endothermic reaction? Which has...Ch. 3 - Prob. 24ECh. 3 - Prob. 25ECh. 3 - 26. How do the three temperature scales differ?
Ch. 3 - Prob. 27ECh. 3 - Prob. 28ECh. 3 - The following equation can be used to convert...Ch. 3 - Prob. 30ECh. 3 - Classify each pure substance as an element or a...Ch. 3 - 32. Classify each pure substance as an element or...Ch. 3 - 33. Classify each mixture as homogeneous or...Ch. 3 - 34. Classify each mixture as homogeneous or...Ch. 3 - 35. Classify each substance as a pure substance or...Ch. 3 - 36. Classify each substance as a pure substance or...Ch. 3 - Classify each property as physical or chemical. a....Ch. 3 - Classify each property as physical or chemical. a....Ch. 3 - Which of the following properties of ethylene(a...Ch. 3 - Which of the following properties of ozone (a...Ch. 3 - 41. Classify each change as physical or...Ch. 3 - 42. Classify each change as physical or...Ch. 3 - A block of aluminum is (a) ground into aluminum...Ch. 3 - 44. Several pieces of graphite from a mechanical...Ch. 3 - 45. An automobile gasoline tank holds 42 kg of...Ch. 3 - In the explosion of a hydrogen-filled balloon,...Ch. 3 - 47. Are these data sets on chemical changes...Ch. 3 - 48. Are these data sets on chemical changes...Ch. 3 - Prob. 49ECh. 3 - 50. A 56-g sample of iron reacts with 24 g of...Ch. 3 - Prob. 51ECh. 3 - Prob. 52ECh. 3 - Prob. 53ECh. 3 - Prob. 54ECh. 3 - Prob. 55ECh. 3 - Prob. 56ECh. 3 - Prob. 57ECh. 3 - Prob. 58ECh. 3 - Prob. 59ECh. 3 - Prob. 60ECh. 3 - 61 A common type of handwarmer contains Iron...Ch. 3 - 62. In a chemical cold pack, two substances are...Ch. 3 - 63. Classify each process as exothermic or...Ch. 3 - Classify each process as exothermic or...Ch. 3 - Perform each temperature conversion. a.212 F to...Ch. 3 - Prob. 66ECh. 3 - The coldest temperature ever measured in the...Ch. 3 - 68. The warmest temperature ever measured in the...Ch. 3 - 69. Vodka does not freeze in the freezer because...Ch. 3 - Liquid helium boils at 4.2 K. Convert this...Ch. 3 - 71. The temperature in the South Pole during the...Ch. 3 - Prob. 72ECh. 3 - Prob. 73ECh. 3 - Prob. 74ECh. 3 - 75. Calculate the amount of heat required to raise...Ch. 3 - 76. Calculate the amount of heat required to raise...Ch. 3 - Calculate the amount of heat required to heat a...Ch. 3 - 78. Calculate the amount of heat required to heat...Ch. 3 - If 89 J of heat are added to a pure gold coin with...Ch. 3 - If 57 J heat are added to an aluminum can with a...Ch. 3 - An iron nail with a mass of 12 g absorbs 15 J of...Ch. 3 - Prob. 82ECh. 3 - Prob. 83ECh. 3 - 84. A lead fishing weight with a mass of 57 g...Ch. 3 - An unknown metal with a mass of 28 g absorbs 58 J...Ch. 3 - When 2.8 J of heat are added to 5.6 g of an...Ch. 3 - When 56 J of heat are added to 11 g of a liquid,...Ch. 3 - Prob. 88ECh. 3 - Prob. 89ECh. 3 - Prob. 90ECh. 3 - How much energy (In J) lost when a sample of iron...Ch. 3 - Prob. 92ECh. 3 - Prob. 93ECh. 3 - Prob. 94ECh. 3 - A pure gold ring with a volume of 1.57 cm3 is...Ch. 3 - Prob. 96ECh. 3 - Prob. 97ECh. 3 - Prob. 98ECh. 3 - 99. What is the temperature change (ΔT) in Celsius...Ch. 3 - Prob. 100ECh. 3 - Prob. 101ECh. 3 - Prob. 102ECh. 3 - A backpacker wants to carry enough fuel to heat...Ch. 3 - 104. A cook wants to heat 1.35 kg of water from...Ch. 3 - Evaporating sweat cools the body because...Ch. 3 - Prob. 106ECh. 3 - A 15.7-g aluminum block is warmed to 53.2C and...Ch. 3 - A 25.0-mL sample of ethanol (density = 0.789g/mL)...Ch. 3 - The wattage of an appliance indicates its average...Ch. 3 - Prob. 110ECh. 3 - What temperature is the same whether it is...Ch. 3 - What temperature on the Celsius scale is equal to...Ch. 3 - 113. Classify each as pure substance or a...Ch. 3 - Classify each as a pure substance or a mixture. If...Ch. 3 - This molecular drawing shows images of acetone...Ch. 3 - This molecular drawing shows of methane molecules...Ch. 3 - Prob. 117ECh. 3 - Global warming refers to the rise in average...Ch. 3 - 119. Examine the data for the maximum and minimum...Ch. 3 - Using white and black circles to represent...Ch. 3 - Prob. 121QGWCh. 3 - 122. A friend asks you to invest in a new...Ch. 3 - Prob. 123QGW
Knowledge Booster
Similar questions
- A 45-g aluminum spoon (specific heat 0.88 J/g C) at 24 C is placed in 180 mL (180 g) of coffee at 85 C and the temperature of the two become equal. (a) What is the final temperature when the two become equal? Assume that coffee has the same specific heat as water. (b) The first time a student solved this problem she got an answer of 88 C. Explain why this is clearly an incorrect answer.arrow_forwardA 110.-g sample of copper (specific heat capacity = 0.20 J/C g) is heated to 82.4C and then placed in a container of water at 22.3C. The final temperature of the water and copper is 24.9C. What is the mass of the water in the container, assuming that all the heat lost by the copper is gained by the water?arrow_forwardThe temperature of the cooling water as it leaves the hot engine of an automobile is 240 F. After it passes through the radiator it has a temperature of 175 F. Calculate the amount of heat transferred from the engine to the surroundings by one gallon of water with a specific heat of 4.184 J/g oC.arrow_forward
- How much heat, in joules and in calories, is required to heat a 28.4-g (1-oz) ice cube from 23.0 C to 1.0 C?arrow_forwardAn iron skillet weighing 1.63 kg is heated on a stove to 178C. Suppose the skillet is cooled to room temperature, 21C. How much heat energy (in joules) must be removed to affect this cooling? The specific heat of iron is 0.449 J/(gC).arrow_forwardThe BTU (British thermal unit) is the unit of energy most commonly used in the United States. One joule=9.48104 BTU. What is the specific heat of water in BTU/lbF? (Specific heat of water is 4.18 J/g C.)arrow_forward
- During a recent winter month in Sheboygan, Wisconsin, it was necessary to obtain 3500 kWh of heat provided by a natural gas furnace with 89% efficiency to keep a small house warm (the efficiency of a gas furnace is the percent of the heat produced by combustion that is transferred into the house). (a) Assume that natural gas is pure methane and determine the volume of natural gas in cubic feet that was required to heat the house. The average temperature of the natural gas was 56 F; at this temperature and a pressure of 1 atm, natural gas has a density of 0.68 1 g/L. (b) How many gallons of LPG (liquefied petroleum gas) would be required to replace the natural gas used? Assume the LPG is liquid propane [ C3H8 : density, 0.5318 g/mL; enthalpy of combustion, 2219 Id/mo for the formation of CO2(g) and H2O(l) ] and the furnace used to burn the LPG has the same efficiency as the gas furnace. (c) What mass of carbon dioxide is produced by combustion of the methane used to heat the house? (d) What mass of water is produced by combustion of the methane used to heat the house? (e) What volume of air is required to provide the oxygen for the combustion of the methane used to heat the house? Air contains 23% oxygen by mass. The average density of air during the month was 1.22 g/L. (f) How many kilowatt—hours ( 1kWh=3.6106 J) of electricity would be required to provide the heat necessary to heat the house? Note electricity is 100% efficient in producing heat inside a house. (g) Although electricity is 100% efficient in producing heat inside a house, production and distribution of electricity is not 100% efficient. The efficiency of production and distribution of electricity produced in a coal-fired power plant is about 40%. A certain type of coal provides 2.26 kWh per pound upon combustion. What mass of this coal in kilograms will be required to produce the electrical energy necessary to heat the house if the efficiency of generation and distribution is 40%?arrow_forwardA piece of chocolate cake contains about 400 calories. A nutritional calorie is equal to 1000 calories (thermochemical calories), which is equal to 4.184 kJ. How many 8-in-high steps must a 180-lb man climb to expend the 400 Cal from the piece of cake? See Exercise 28 for the formula for potential energy.arrow_forwardCopper is used in building the integrated circuits, chips, and printed circuit boards for computers. When 228 J of heat are absorbed by 125 g of copper at 22.38C, the temperature rises to 27.12C. What is the specific heat of copper?arrow_forward
- An aluminum kettle weighs 1.05 kg. (a) What is the heat capacity of the kettle? (b) How much heat is required to increase the temperature of this kettle from 23.0 C to 99.0 C? (c) How much heat is required to heat this kettle from 23.0 C to 99.0 C if it contains 1.25 L of water (density of 0.997 g/mL and a specific heat of 4.184 J/g C)?arrow_forwardA block of aluminum and a block of iron, both having the same mass, are removed from a freezer and placed outside on a warm day. When the same quantity of heat has flowed into each block, which block will be warmer? Assume that neither block has yet reached the outside temperature. (See Table 6.1 for the specific heats of the metals.)arrow_forwardIf 14.5 kJ of heat were added to 485 g of liquid water, how much would its temperature increase?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage LearningChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningWorld of ChemistryChemistryISBN:9780618562763Author:Steven S. ZumdahlPublisher:Houghton Mifflin College DivChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
World of Chemistry, 3rd edition
Chemistry
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Brooks / Cole / Cengage Learning
Chemistry: Matter and Change
Chemistry
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Glencoe/McGraw-Hill School Pub Co
Introductory Chemistry: A Foundation
Chemistry
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
General Chemistry - Standalone book (MindTap Cour...
Chemistry
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Cengage Learning
World of Chemistry
Chemistry
ISBN:9780618562763
Author:Steven S. Zumdahl
Publisher:Houghton Mifflin College Div
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning