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For a given reaction delta h=35.5 kJ mol-¹ and delta s= 83.6. the reaction is spontaneous at. ans is T>425 K. But for spontaneous reaction delta s>0 So why answer is not at all temperature?
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For a given reaction delta h=35.5 kJ mol-¹ and delta s= 83.6. the reac...
Spontaneous when delta G is negative
( delta G = delta H -T delta s)
so H- T S < />
H
H/S < />
~425
( delta G = delta H -T delta s)
so H- T S < />
H
H/S < />
~425
Community Answer
For a given reaction delta h=35.5 kJ mol-¹ and delta s= 83.6. the reac...
Explanation:
To determine the temperature at which a reaction becomes spontaneous, we can use the Gibbs free energy equation:
ΔG = ΔH - TΔS
where ΔG is the change in Gibbs free energy, ΔH is the change in enthalpy, ΔS is the change in entropy, and T is the temperature in Kelvin.
In order for a reaction to be spontaneous, ΔG must be negative. This means that the change in enthalpy and the change in entropy must be such that the term -TΔS is greater than ΔH.
In this case, we are given that ΔH = 35.5 kJ mol⁻¹ and ΔS = 83.6. Since ΔS is positive, we know that the reaction is more favorable at higher temperatures, as the term -TΔS will become more negative.
To find the temperature at which the reaction becomes spontaneous, we can set ΔG equal to zero and solve for T:
0 = ΔH - TΔS
TΔS = ΔH
T = ΔH/ΔS
Plugging in the given values:
T = 35.5 kJ mol⁻¹ / 83.6
T ≈ 0.425 K
Therefore, the reaction is spontaneous at temperatures greater than approximately 425 K.
Conclusion:
In conclusion, the reaction is not spontaneous at all temperatures because the term -TΔS becomes less negative as the temperature decreases. The reaction becomes spontaneous when the term -TΔS is greater than ΔH, and this occurs at temperatures greater than approximately 425 K.
To determine the temperature at which a reaction becomes spontaneous, we can use the Gibbs free energy equation:
ΔG = ΔH - TΔS
where ΔG is the change in Gibbs free energy, ΔH is the change in enthalpy, ΔS is the change in entropy, and T is the temperature in Kelvin.
In order for a reaction to be spontaneous, ΔG must be negative. This means that the change in enthalpy and the change in entropy must be such that the term -TΔS is greater than ΔH.
In this case, we are given that ΔH = 35.5 kJ mol⁻¹ and ΔS = 83.6. Since ΔS is positive, we know that the reaction is more favorable at higher temperatures, as the term -TΔS will become more negative.
To find the temperature at which the reaction becomes spontaneous, we can set ΔG equal to zero and solve for T:
0 = ΔH - TΔS
TΔS = ΔH
T = ΔH/ΔS
Plugging in the given values:
T = 35.5 kJ mol⁻¹ / 83.6
T ≈ 0.425 K
Therefore, the reaction is spontaneous at temperatures greater than approximately 425 K.
Conclusion:
In conclusion, the reaction is not spontaneous at all temperatures because the term -TΔS becomes less negative as the temperature decreases. The reaction becomes spontaneous when the term -TΔS is greater than ΔH, and this occurs at temperatures greater than approximately 425 K.
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For a given reaction delta h=35.5 kJ mol-¹ and delta s= 83.6. the reaction is spontaneous at. ans is T>425 K. But for spontaneous reaction delta s>0 So why answer is not at all temperature?
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For a given reaction delta h=35.5 kJ mol-¹ and delta s= 83.6. the reaction is spontaneous at. ans is T>425 K. But for spontaneous reaction delta s>0 So why answer is not at all temperature? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about For a given reaction delta h=35.5 kJ mol-¹ and delta s= 83.6. the reaction is spontaneous at. ans is T>425 K. But for spontaneous reaction delta s>0 So why answer is not at all temperature? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For a given reaction delta h=35.5 kJ mol-¹ and delta s= 83.6. the reaction is spontaneous at. ans is T>425 K. But for spontaneous reaction delta s>0 So why answer is not at all temperature?.
For a given reaction delta h=35.5 kJ mol-¹ and delta s= 83.6. the reaction is spontaneous at. ans is T>425 K. But for spontaneous reaction delta s>0 So why answer is not at all temperature? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about For a given reaction delta h=35.5 kJ mol-¹ and delta s= 83.6. the reaction is spontaneous at. ans is T>425 K. But for spontaneous reaction delta s>0 So why answer is not at all temperature? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For a given reaction delta h=35.5 kJ mol-¹ and delta s= 83.6. the reaction is spontaneous at. ans is T>425 K. But for spontaneous reaction delta s>0 So why answer is not at all temperature?.
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