Domanda del libro di testo
Suppose that a person eats 2105 Calories per day. Convert this amount of energy into each unit. c. kWh
Ch.7 - Thermochemistry
Tro6th EditionChemistry: A Molecular ApproachISBN: 9780137832217
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TOC.tableOfContents
- Ch.1 - Matter, Measurement & Problem Solving118
- Ch.2 - Atoms & Elements106
- Ch.3 - Molecules and Compounds131
- Ch.4 - Chemical Reactions and Chemical Quantities56
- Ch.5 - Introduction to Solutions and Aqueous Solutions82
- Ch.6 - Gases114
- Ch.7 - Thermochemistry96
- Ch.8 - The Quantum-Mechanical Model of the Atom60
- Ch.9 - Periodic Properties of the Elements90
- Ch.10 - Chemical Bonding I: The Lewis Model89
- Ch.11 - Chemical Bonding II: Molecular Shapes, VSEPR & MO Theory85
- Ch.12 - Liquids, Solids & Intermolecular Forces51
- Ch.13 - Solids & Modern Materials47
- Ch.14 - Solutions90
- Ch.15 - Chemical Kinetics115
- Ch.16 - Chemical Equilibrium68
- Ch.17 - Acids and Bases136
- Ch.18 - Aqueous Ionic Equilibrium153
- Ch.19 - Free Energy & Thermodynamics93
- Ch.20 - Electrochemistry106
- Ch.21 - Radioactivity & Nuclear Chemistry74
- Ch.22 - Organic Chemistry140
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Capitolo 7, Problema 34c
Convert between energy units. c. 4.99 × 103 kJ to kWh
Guida verificata passo dopo passo1
Identify the conversion factor between kilojoules (kJ) and kilowatt-hours (kWh). The conversion factor is 1 kWh = 3600 kJ.
Write down the given energy in kilojoules, which is 4.99 \(\times\) 10^3 kJ.
Set up the conversion equation using the conversion factor. You want to convert kJ to kWh, so divide the energy in kJ by the conversion factor (3600 kJ/kWh).
Perform the division to convert the energy from kJ to kWh. This involves dividing 4.99 \(\times\) 10^3 kJ by 3600 kJ/kWh.
The result from the division will give you the energy in kilowatt-hours (kWh).
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Energy Units
Energy can be measured in various units, with kilojoules (kJ) and kilowatt-hours (kWh) being common in chemistry and electrical contexts. A kilojoule is a unit of energy equal to 1,000 joules, while a kilowatt-hour is the energy consumed by a power of one kilowatt running for one hour, equivalent to 3.6 million joules.
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Percorso guidato
02:13
SI Units
Conversion Factors
To convert between different energy units, specific conversion factors are used. For instance, to convert kJ to kWh, one must know that 1 kWh equals 3.6 million joules. Therefore, the conversion involves dividing the energy in kJ by 3,600 to obtain the equivalent in kWh.
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Percorso guidato
01:56Conversion Factors
Dimensional Analysis
Dimensional analysis is a mathematical technique used to convert units by multiplying by conversion factors that cancel out unwanted units. This method ensures that the final answer is in the desired unit, making it a crucial tool for solving problems involving unit conversions in chemistry.
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Percorso guidato
06:11Dimensional Analysis
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