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AP Chemistry Chapter 6

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Section 1

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constant-pressure calorimetry

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Chemistry Science

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Mar 1, 2020

Cards (26)

Section 1

(26 cards)

constant-pressure calorimetry

Front

calorimetry where the pressure stays constant during the process eg coffee cup calorimetry

Back

calorimeter

Front

device used to experimentally measure the heat associated with a chemical reaction

Back

standard enthalpy of formation

Front

the enthalpy change that accompanies the formation of one mole of a compound at 25 C from its elements, with all substances in their standard states at that temperature

Back

first law of thermodynamics

Front

the energy of the universe is constant; same as the law of conversation of energy

Back

surroundings

Front

everything in the universe surrounding a thermodynamic system

Back

heat

Front

energy transferred between two objects due to a temperature difference between them

Back

Hess's Law

Front

in going from a particular set of reactants to a particular set of products, the enthalpy change is the same whether the reaction takes place in one step or in a series of steps; in summary - enthalpy is a state function

Back

kinetic energy

Front

energy due to the motion of an object; 1/2 mv2

Back

calorimetry

Front

the science of measuring heat flow

Back

heat capacity

Front

the amount of energy required to raise the temperature of an object by 1 degree Celsius

Back

constant-volume calorimetry

Front

calorimetry where the volume stays constant during the process eg bomb calorimeter

Back

work

Front

force acting over a distance

Back

exothermic

Front

refers to a reaction where energy (as heat) flows out of the system

Back

thermodynamics

Front

the study of energy and its interconversions

Back

internal energy

Front

a property of a system that can be changed by a flow of work, heat, or both;

Back

molar heat capacity

Front

the energy required to raise the temperature of one mole of a substance by one degree Celsius

Back

standard state

Front

a reference state for a specific substance defined according to a set of conventional definitions p 260

Back

endothermic

Front

refers to a reaction where energy (as heat) flows into the system

Back

pathway

Front

the route taken by the system to get to its current state

Back

system

Front

that part of the universe on which attention is to be focused

Back

law of conservation of energy

Front

energy can be converted from one form to another but can be neither created nor destroyed

Back

potential energy

Front

energy due to position or composition

Back

specific heat capacity

Front

the energy required to raise the temperature of one gram of a substance by one degree Celsius

Back

enthalpy

Front

a property of a system equal to E + PV where E is the internal energy, P is the pressure, and V is the volume. At constant P the change in enthalpy equals the energy flow as heat

Back

energy

Front

the capacity to do work or to cause heat flow

Back

state function

Front

a property that is independent of the pathway

Back