According to the table, if a process is spontaneous and has a positive AS, what must be true of its enthalpy change, AH? Enthalpy Change Entropy Change Exothermic (-AH) Increase (+AS) Exothermic (-AH) Decrease (-AS) Increase Increase (+AS) (+AS) Decrease (-AS) Endothermic (+AH) Endothermic (+AH) A B AH must be positive. AH must be negative. Spontaneous Reaction? Yes, -AG at any temperature Only at low temps, if |T AS| < |AH| Only at high temps, if IT AS| > |AH| No, +AG at any temperature

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Analyze the table below.
According to the table, if a process is spontaneous and has a positive AS, what
must be true of its enthalpy change, AH?
Enthalpy Change
Entropy Change
Exothermic (-AH)
Increase (+AS)
Exothermic (-AH)
Decrease (-AS)
Endothermic (+AH)
Increase (+AS)
Endothermic (+AH) Decrease (-AS)
A
B
с
AH must be positive.
AH must be negative.
Spontaneous Reaction?
Yes, -AG at any temperature
Only at low temps, if |T AS| < |AH|
Only at high temps, if IT AS| > |AH|
No, +AG at any temperature
There is no way to know the enthalpy change.
D The enthalpy change depends on temperature.
Transcribed Image Text:Analyze the table below. According to the table, if a process is spontaneous and has a positive AS, what must be true of its enthalpy change, AH? Enthalpy Change Entropy Change Exothermic (-AH) Increase (+AS) Exothermic (-AH) Decrease (-AS) Endothermic (+AH) Increase (+AS) Endothermic (+AH) Decrease (-AS) A B с AH must be positive. AH must be negative. Spontaneous Reaction? Yes, -AG at any temperature Only at low temps, if |T AS| < |AH| Only at high temps, if IT AS| > |AH| No, +AG at any temperature There is no way to know the enthalpy change. D The enthalpy change depends on temperature.
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