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(c) By what means can the internal energy of a closed system increase?
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Ch.5 - Thermochemistry
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement177
- Ch.2 - Atoms, Molecules, and Ions231
- Ch.3 - Chemical Reactions and Reaction Stoichiometry216
- Ch.4 - Reactions in Aqueous Solution189
- Ch.5 - Thermochemistry175
- Ch.6 - Electronic Structure of Atoms168
- Ch.7 - Periodic Properties of the Elements150
- Ch.8 - Basic Concepts of Chemical Bonding177
- Ch.9 - Molecular Geometry and Bonding Theories200
- Ch.10 - Gases179
- Ch.11 - Liquids and Intermolecular Forces113
- Ch.12 - Solids and Modern Materials154
- Ch.13 - Properties of Solutions157
- Ch.14 - Chemical Kinetics199
- Ch.15 - Chemical Equilibrium128
- Ch.16 - Acid-Base Equilibria164
- Ch.17 - Additional Aspects of Aqueous Equilibria163
- Ch.18 - Chemistry of the Environment105
- Ch.19 - Chemical Thermodynamics164
- Ch.20 - Electrochemistry171
- Ch.21 - Nuclear Chemistry122
- Ch.22 - Chemistry of the Nonmetals82
- Ch.23 - Transition Metals and Coordination Chemistry79
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Capitolo 5, Problema 23a
(a) According to the first law of thermodynamics, what quantity is conserved?
Guida verificata passo dopo passo1
The first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic systems.
It states that energy cannot be created or destroyed in an isolated system.
The first law is often expressed as \( \Delta U = Q - W \), where \( \Delta U \) is the change in internal energy of the system, \( Q \) is the heat added to the system, and \( W \) is the work done by the system.
According to this law, the total energy of an isolated system is constant.
Therefore, the quantity that is conserved according to the first law of thermodynamics is energy.
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First Law of Thermodynamics
The First Law of Thermodynamics, also known as the law of energy conservation, states that energy cannot be created or destroyed in an isolated system. Instead, energy can only be transformed from one form to another. This principle is fundamental in understanding how energy flows in physical and chemical processes.
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01:18
First Law of Thermodynamics
Internal Energy
Internal energy is the total energy contained within a system, including kinetic and potential energy at the molecular level. According to the First Law of Thermodynamics, any change in the internal energy of a system is equal to the heat added to the system minus the work done by the system on its surroundings. This concept is crucial for analyzing thermodynamic processes.
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00:40Internal Energy
Work and Heat
In thermodynamics, work and heat are two ways energy can be transferred between a system and its surroundings. Work refers to energy transfer that occurs when a force is applied over a distance, while heat is the energy transferred due to a temperature difference. Understanding these concepts is essential for applying the First Law of Thermodynamics to real-world scenarios.
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02:19Heat Capacity
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Domanda del libro di testo
In a thermodynamic study, a scientist focuses on the properties of a solution in an apparatus as illustrated. A solution is continuously flowing into the apparatus at the top and out at the bottom, such that the amount of solution in the apparatus is constant with time. (b) If the inlet and outlet were closed, what type of system would it be
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Domanda del libro di testo
(b) What is meant by the internal energy of a system?
Domanda del libro di testo
In a thermodynamic study, a scientist focuses on the properties of a solution in an apparatus as illustrated. A solution is continuously flowing into the apparatus at the top and out at the bottom, such that the amount of solution in the apparatus is constant with time. (a) Is the solution in the apparatus a closed system, open system, or isolated system?
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