Class 12 Exam > Class 12 Questions > Select the correct statement.a)In the decompo...
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Select the correct statement.
- a)In the decomposition of an oxide into oxygen and gaseous metal, entropy increases.
- b)Decomposition of an oxide is an endothermic change.
- c)To make ΔGo negative, temperature should be high enough so that TΔSo > ΔHo.
- d)All are correct statements
Correct answer is option 'D'. Can you explain this answer?
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Select the correct statement.a)In the decomposition of an oxide into o...
(A),(B) and (C) stat4ements are correct.
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Select the correct statement.a)In the decomposition of an oxide into o...
Statement a) In the decomposition of an oxide into oxygen and gaseous metal, entropy increases.
When an oxide decomposes into oxygen and gaseous metal, the number of moles of gas increases. Since the number of microstates (ways of arranging particles) increases with an increase in the number of particles, the entropy of the system increases. Therefore, statement a) is correct.
Statement b) Decomposition of an oxide is an endothermic change.
The decomposition of an oxide requires energy input in order to break the chemical bonds holding the oxide together. This energy input is usually in the form of heat, and the process is therefore endothermic. Thus, statement b) is correct.
Statement c) To make ΔG° negative, temperature should be high enough so that ΔS° > ΔH°.
The Gibbs free energy change (ΔG°) is related to the enthalpy change (ΔH°) and the entropy change (ΔS°) through the equation ΔG° = ΔH° - TΔS°, where T is the temperature in Kelvin. To make ΔG° negative, the right side of the equation should be negative, which means either ΔH° should be negative (exothermic process) or ΔS° should be positive (increase in disorder). In the given statement, it is mentioned that temperature should be high enough so that TΔS° > ΔH°. This ensures that the entropy term dominates and makes ΔG° negative. Therefore, statement c) is correct.
Conclusion:
All three statements given (a, b, c) are correct. The decomposition of an oxide increases entropy, is an endothermic process, and to make ΔG° negative, the temperature should be high enough so that TΔS° > ΔH°.
When an oxide decomposes into oxygen and gaseous metal, the number of moles of gas increases. Since the number of microstates (ways of arranging particles) increases with an increase in the number of particles, the entropy of the system increases. Therefore, statement a) is correct.
Statement b) Decomposition of an oxide is an endothermic change.
The decomposition of an oxide requires energy input in order to break the chemical bonds holding the oxide together. This energy input is usually in the form of heat, and the process is therefore endothermic. Thus, statement b) is correct.
Statement c) To make ΔG° negative, temperature should be high enough so that ΔS° > ΔH°.
The Gibbs free energy change (ΔG°) is related to the enthalpy change (ΔH°) and the entropy change (ΔS°) through the equation ΔG° = ΔH° - TΔS°, where T is the temperature in Kelvin. To make ΔG° negative, the right side of the equation should be negative, which means either ΔH° should be negative (exothermic process) or ΔS° should be positive (increase in disorder). In the given statement, it is mentioned that temperature should be high enough so that TΔS° > ΔH°. This ensures that the entropy term dominates and makes ΔG° negative. Therefore, statement c) is correct.
Conclusion:
All three statements given (a, b, c) are correct. The decomposition of an oxide increases entropy, is an endothermic process, and to make ΔG° negative, the temperature should be high enough so that TΔS° > ΔH°.
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Select the correct statement.a)In the decomposition of an oxide into oxygen and gaseous metal, entropy increases.b)Decomposition of an oxide is an endothermic change.c)To make ΔGo negative, temperature should be high enough so that TΔSo > ΔHo.d)All are correct statementsCorrect answer is option 'D'. Can you explain this answer?
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Select the correct statement.a)In the decomposition of an oxide into oxygen and gaseous metal, entropy increases.b)Decomposition of an oxide is an endothermic change.c)To make ΔGo negative, temperature should be high enough so that TΔSo > ΔHo.d)All are correct statementsCorrect answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Select the correct statement.a)In the decomposition of an oxide into oxygen and gaseous metal, entropy increases.b)Decomposition of an oxide is an endothermic change.c)To make ΔGo negative, temperature should be high enough so that TΔSo > ΔHo.d)All are correct statementsCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select the correct statement.a)In the decomposition of an oxide into oxygen and gaseous metal, entropy increases.b)Decomposition of an oxide is an endothermic change.c)To make ΔGo negative, temperature should be high enough so that TΔSo > ΔHo.d)All are correct statementsCorrect answer is option 'D'. Can you explain this answer?.
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Solutions for Select the correct statement.a)In the decomposition of an oxide into oxygen and gaseous metal, entropy increases.b)Decomposition of an oxide is an endothermic change.c)To make ΔGo negative, temperature should be high enough so that TΔSo > ΔHo.d)All are correct statementsCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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Select the correct statement.a)In the decomposition of an oxide into oxygen and gaseous metal, entropy increases.b)Decomposition of an oxide is an endothermic change.c)To make ΔGo negative, temperature should be high enough so that TΔSo > ΔHo.d)All are correct statementsCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Select the correct statement.a)In the decomposition of an oxide into oxygen and gaseous metal, entropy increases.b)Decomposition of an oxide is an endothermic change.c)To make ΔGo negative, temperature should be high enough so that TΔSo > ΔHo.d)All are correct statementsCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Select the correct statement.a)In the decomposition of an oxide into oxygen and gaseous metal, entropy increases.b)Decomposition of an oxide is an endothermic change.c)To make ΔGo negative, temperature should be high enough so that TΔSo > ΔHo.d)All are correct statementsCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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