Flashcards - Thermochemistry & the Laws of Thermodynamics

Flashcards - Thermochemistry & the Laws of Thermodynamics
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Heating things up increases the entropy
Entropy is a measure of the energy of a system that is unavailable for doing useful work
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calorimeter
A calorimeter is an object used for calorimetry, or the process of measuring the heat of chemical reactions or physical changes as well as heat capacity
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thermochemical equation
A Thermochemical Equation is a balanced stoichiometric chemical equation that includes the enthalpy change, ΔH
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exothermic reaction
An exothermic reaction is a chemical reaction that releases energy by light or heat
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work
In physics, a force is said to do work if, when acting there is a displacement of the point of application in the direction of the force
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Thermal expansion
Thermal expansion is the tendency of matter to change in shape, area, and volume in response to a change in temperature, through heat transfer
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system
A system is a set of interacting or interdependent component parts forming a complex/intricate whole
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Energy
In physics, energy is a property of objects which can be transferred to other objects or converted into different forms
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specific heat capacity
Heat capacity or thermal capacity is a measurable physical quantity equal to the ratio of the heat added to an object to the resulting temperature change
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calorie
Calories are units of energy
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potential energy
In physics, potential energy is energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors
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heat
In physics, heat is energy that spontaneously passes between a system and its surroundings in some way other than through work or the transfer of matter
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heat
In physics, heat is energy that spontaneously passes between a system and its surroundings in some way other than through work or the transfer of matter
potential energy
In physics, potential energy is energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors
calorie
Calories are units of energy
specific heat capacity
Heat capacity or thermal capacity is a measurable physical quantity equal to the ratio of the heat added to an object to the resulting temperature change
Energy
In physics, energy is a property of objects which can be transferred to other objects or converted into different forms
system
A system is a set of interacting or interdependent component parts forming a complex/intricate whole
Thermal expansion
Thermal expansion is the tendency of matter to change in shape, area, and volume in response to a change in temperature, through heat transfer
work
In physics, a force is said to do work if, when acting there is a displacement of the point of application in the direction of the force
exothermic reaction
An exothermic reaction is a chemical reaction that releases energy by light or heat
thermochemical equation
A Thermochemical Equation is a balanced stoichiometric chemical equation that includes the enthalpy change, ΔH
calorimeter
A calorimeter is an object used for calorimetry, or the process of measuring the heat of chemical reactions or physical changes as well as heat capacity
Heating things up increases the entropy
Entropy is a measure of the energy of a system that is unavailable for doing useful work
electrochemical cell
An electrochemical cell is a device capable of either generating electrical energy from chemical reactions or facilitating chemical reactions through the introduction of electrical energy
redox reaction
Redox is a chemical reaction in which the oxidation states of atoms are changed
equilibrium constant
The equilibrium constant of a chemical reaction is the value of the reaction quotient when the reaction has reached equilibrium
standard conditions
Standard conditions for temperature and pressure are standard sets of conditions for experimental measurements to be established to allow comparisons to be made between different sets of data
laws of thermodynamics
The four laws of thermodynamics define fundamental physical quantities that characterize thermodynamic systems at thermal equilibrium
Thermodynamics
Thermodynamics is a branch of science concerned with heat and temperature and their relation to energy and work
zeroth law of thermodynamics
The zeroth law of thermodynamics states that if two thermodynamic systems are each in thermal equilibrium with a third, then they are in thermal equilibrium with each other
Carnot Cycle
The Carnot cycle is a theoretical thermodynamic cycle proposed by Nicolas Léonard Sadi Carnot in 1824 and expanded upon by others in the 1830s and 1840s
heat transfer
Heat transfer is the exchange of thermal energy between physical systems
endothermic reaction
The term endothermic process describes a process or reaction in which the system absorbs energy from its surroundings; usually, but not always, in the form of heat
joule
The joule , symbol J, is a derived unit of energy in the International System of Units
phase change
The term phase transition is most commonly used to describe transitions between solid, liquid and gaseous states of matter, and, in rare cases, plasma
Solids
Solid is one of the four fundamental states of matter

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