Chemistry In Focus
6th Edition
ISBN: 9781305084476
Author: Tro, Nivaldo J., Neu, Don.
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 9, Problem 12E
Interpretation Introduction
Interpretation:
The difference between energy and power is to be explained.
Concept introduction:
Power is defined as the energy used per unit time to do some work. SI unit of power is watt (W) which is joule/second.
The power that arises by utilizing the chemical or physical resources for providing heat and light or carrying out various processes is known as energy. The SI unit of energy is joule.
The law of conservation of energy states that energy can neither be created nor be destroyed, it can be converted to other forms.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
The energy required to power a light bulb is 20 W . On an average, the bulb is switched on for 4 hours per day. Calculate the amount of energy required in joules per month? Assume 30 days in one month.
What makes this remarkable balance of energy input and output possible?
A typical candy bar weighs about 2 oz (1.00 oz = 28.4 g).(a) Assuming that a candy bar is 100% sugar and that 1.0 g of sugar is equivalent to about 4.0 Calories of energy, calculate the energy (in kJ) contained in a typical candy bar.(b) Assuming that your mass is 58 kg and you convert chemical potential energy to work with 100% efficiency, how high would you have to climb to work off the energy in a candy bar? (Potential energy = mass × g × height, where g = 9.8 m/s2.)(c) Why is your actual conversion of potential energy to work less than 100% efficient?
Chapter 9 Solutions
Chemistry In Focus
Ch. 9 - Conversion of Energy Units The complete combustion...Ch. 9 - Calculating Energy Use in Kilowatt-Hours What is...Ch. 9 - Prob. 9.3YTCh. 9 - Enthalpy of Reaction How much energy in...Ch. 9 - Prob. 9.5YTCh. 9 - Prob. 1SCCh. 9 - Prob. 2SCCh. 9 - Prob. 3SCCh. 9 - Prob. 4SCCh. 9 - When two solutions are mixed in a beaker, a...
Ch. 9 - Prob. 1ECh. 9 - From a molecular standpoint, explain how thermal...Ch. 9 - Prob. 3ECh. 9 - Prob. 4ECh. 9 - Prob. 5ECh. 9 - Explain the first law of thermodynamics and its...Ch. 9 - What is entropy? Why is entropy important?Ch. 9 - Explain the second law of thermodynamics and its...Ch. 9 - Prob. 9ECh. 9 - Prob. 10ECh. 9 - Define each of the following terms: a. heat b....Ch. 9 - Prob. 12ECh. 9 - What happens to the temperature of the...Ch. 9 - Prob. 14ECh. 9 - Prob. 15ECh. 9 - Prob. 16ECh. 9 - Prob. 17ECh. 9 - Prob. 18ECh. 9 - Prob. 19ECh. 9 - What are the environmental problems associated...Ch. 9 - Prob. 21ECh. 9 - Prob. 22ECh. 9 - What is the major cause of acid rain?Ch. 9 - Explain how acid rain is formed and its effects on...Ch. 9 - Prob. 25ECh. 9 - Prob. 26ECh. 9 - Prob. 27ECh. 9 - Prob. 28ECh. 9 - Prob. 29ECh. 9 - Which fossil fuel is the worst offender when it...Ch. 9 - Prob. 31ECh. 9 - Prob. 32ECh. 9 - Prob. 33ECh. 9 - Prob. 34ECh. 9 - Assume that electricity costs 15 cents per...Ch. 9 - Prob. 36ECh. 9 - Prob. 37ECh. 9 - Prob. 38ECh. 9 - The coldest temperature ever measured in the...Ch. 9 - The warmest temperature ever measured in the...Ch. 9 - Chemical Reactions and Energy Calculate the amount...Ch. 9 - Prob. 42ECh. 9 - Prob. 43ECh. 9 - Prob. 44ECh. 9 - Prob. 45ECh. 9 - Prob. 46ECh. 9 - Prob. 47ECh. 9 - Prob. 48ECh. 9 - Calculate the amount of carbon dioxide (in kg)...Ch. 9 - Prob. 50ECh. 9 - The second law of thermodynamics has been called...Ch. 9 - You are camping and contemplating placing some hot...Ch. 9 - Prob. 56ECh. 9 - Prob. 57ECh. 9 - Prob. 58E
Knowledge Booster
Similar questions
- A 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_forwardMost people find waterbeds uncomfortable unless the water temperature is maintained at about 85 F. Unless it is heated, a waterbed that contains 892 L of water cools from 85 F to 72 F in 24 hours. Estimate the amount of electrical energy required over 24 hours, in kWh, to keep the bed from cooling. Note that 1 kilowatt-hour (kWh) = 3.6106 J, and assume that the density of water is 1.0 g/mL (independent of temperature). What other assumptions did you make? How did they affect your calculated result (i.e., were they likely to yield positive or negative errors)?arrow_forwardCalculating Energy Use in Kilowatt-Hours What is the yearly cost of operating a 100-W television for 2 hours per day, assuming the cost of electricity is 15 cents per kilowatt-hour?arrow_forward
- Define The Nature of Energy?arrow_forwardAn average American consumes approximately 106 kJ of energy per day. The average life expectancy of an American is 77.9 years. How many grams of coal would need to be burned to provide enough energy to meet a person's energy demands if the efficiency of energy production from coal is 38%?arrow_forward4. What speed must a 250.0 kg motorcycle be travelling at to have a kinetic energy of 2.8 x 10* J?arrow_forward
- Use the simulator to determine the temperature change of 80 grams of water initially at 20 °C (Note: When adding metals to water, the water temperature always starts at 20 °C, you do not need to set this parameter.) when a 15 gram piece of iron at 150 °C is placed in it.arrow_forwardDefine energy and explain the importance of energy inchemistryarrow_forwardAs the caterpillar climbs, its potential energy is increasing, what source of energy has been used to effect this change in potential energy?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoLiving By Chemistry: First Edition TextbookChemistryISBN:9781559539418Author:Angelica StacyPublisher:MAC HIGHER
- World of ChemistryChemistryISBN:9780618562763Author:Steven S. ZumdahlPublisher:Houghton Mifflin College DivChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher: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
Living By Chemistry: First Edition Textbook
Chemistry
ISBN:9781559539418
Author:Angelica Stacy
Publisher:MAC HIGHER
World of Chemistry
Chemistry
ISBN:9780618562763
Author:Steven S. Zumdahl
Publisher:Houghton Mifflin College Div
Chemistry for Engineering Students
Chemistry
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Cengage Learning
Introductory Chemistry: A Foundation
Chemistry
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning