The total kinetic energy of the particles in a system
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Term1/14
What does entropy measure
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Definition1/14
Entropy is the inclination for things to increase their level of
disorder.
eg. If you buy a puzzle in a box and you shake it really hard
the pieces become more disorganized, near fall back into their
proper place.
APEX ANSWER: Entropy measures the disorder in a system
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Term1/14
What does the enthalpy of reaction measure
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Definition1/14
The amount of energy that is used or released as heat in a
reaction.
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Term1/14
Which of the following reactions shows that the formation of SO2 releases 296.8 kJ mol
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Definition1/14
S(s) + O2(g) SO2(g) + 296.8 kJ
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Term1/14
What is true of the enthalpy value of an intermediate reaction
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Definition1/14
It is multiplied by 2 if the intermediate reaction is multiplied
by 2
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Term1/14
Which of the following describes the entropy change of a gas reaction
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Definition1/14
If there is an increase in the number of gas molecules, then S > 0.
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Term1/14
What most determines the entropy of a solid
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Definition1/14
The crystalline structure of the solid most determine the
entropy of a solid.
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Term1/14
How is the H fusion used to calculate the mass of solid that 1kJ of energy will melt
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Definition1/14
1kj x 1/H fusion x g/mol solid
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Term1/14
What does the enthaply of reaction measure
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Definition1/14
The enthalpy of reaction is the change of the system enthalpy after a chemical reaction.
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Term1/14
If you need to reverse the following reaction in order for it to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of reaction you use for this in
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Definition1/14
1410 kJ
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Term1/14
How is Hess's law used to measure enthalpy of desired reaction
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Definition1/14
Intermediate equations with known enthalpies are added together
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Term1/14
Would form a spontaneous reaction at 298k
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Definition1/14
Not B
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Term1/14
What does the second law of thermodynamics say apex
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Definition1/14
The entropy of the universe is increasing
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Term1/14
What describes the study of how energy is transferred to different locations and forms
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Definition1/14
Force
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Cards in this guide (14)
What is thermal energy
The total kinetic energy of the particles in a system
What does entropy measure
Entropy is the inclination for things to increase their level of
disorder.
eg. If you buy a puzzle in a box and you shake it really hard
the pieces become more disorganized, near fall back into their
proper place.
APEX ANSWER: Entropy measures the disorder in a system
What does the enthalpy of reaction measure
The amount of energy that is used or released as heat in a
reaction.
Which of the following reactions shows that the formation of SO2 releases 296.8 kJ mol
S(s) + O2(g) SO2(g) + 296.8 kJ
What is true of the enthalpy value of an intermediate reaction
It is multiplied by 2 if the intermediate reaction is multiplied
by 2
Which of the following describes the entropy change of a gas reaction
If there is an increase in the number of gas molecules, then S > 0.
What most determines the entropy of a solid
The crystalline structure of the solid most determine the
entropy of a solid.
How is the H fusion used to calculate the mass of solid that 1kJ of energy will melt
1kj x 1/H fusion x g/mol solid
What does the enthaply of reaction measure
The enthalpy of reaction is the change of the system enthalpy after a chemical reaction.
If you need to reverse the following reaction in order for it to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of reaction you use for this in
1410 kJ
How is Hess's law used to measure enthalpy of desired reaction
Intermediate equations with known enthalpies are added together
Would form a spontaneous reaction at 298k
Not B
What does the second law of thermodynamics say apex
The entropy of the universe is increasing
What describes the study of how energy is transferred to different locations and forms