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Direction (Q. Nos. 10 and 11) This section contains 2 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THANT ONE is correct.
Q. Which of the following statements is/are true?
- a)The entropy of a substance increases on going from the liquid to the vapour state at any temperature
- b)An exothermic reaction will always be spontaneous
- c)Reactions with a positive (ΔH° and ΔS°) can never be product favoured
- d)If ΔG° for a reaction is negative, the reaction will have an equilibrium constant i greater than one
Correct answer is option 'A,D'. Can you explain this answer?
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Direction (Q. Nos. 10 and 11) This section contains 2multiple choice q...
The entropy of a substance increases on going from the liquid to the vapour state at any temperature. It is true. As randomness increases, entropy also increases.
∆G = ∆H - T∆S. So for spontaneous reaction, all 3(T, ∆H and ∆S) are needed.
An exothermic reaction will always be spontaneous. THis is false
Reactions with a positive (ΔH° and ΔS°) can never be product favoured. False, for a larger value of T, ∆G might be negative.
If ΔG° for a reaction is negative, the reaction will have an equilibrium constant greater than one. True, for ΔG° less than 0, reaction is spontaneous and so, ith=s eqm constant will have value greater than 1.
∆G = ∆H - T∆S. So for spontaneous reaction, all 3(T, ∆H and ∆S) are needed.
An exothermic reaction will always be spontaneous. THis is false
Reactions with a positive (ΔH° and ΔS°) can never be product favoured. False, for a larger value of T, ∆G might be negative.
If ΔG° for a reaction is negative, the reaction will have an equilibrium constant greater than one. True, for ΔG° less than 0, reaction is spontaneous and so, ith=s eqm constant will have value greater than 1.
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Direction (Q. Nos. 10 and 11) This section contains 2multiple choice q...
Explanation:
Entropy of a substance increases on going from the liquid to the vapour state:
- This statement is true because the entropy of a substance generally increases when it changes from a more ordered state (liquid) to a more disordered state (vapour). This is because the molecules in the vapour state have more freedom of movement, leading to higher entropy.
An exothermic reaction will always be spontaneous:
- This statement is false. While exothermic reactions tend to be spontaneous because they release energy, the spontaneity of a reaction also depends on the entropy change (ΔS) and the temperature (T). A reaction can be non-spontaneous even if it is exothermic under certain conditions.
Reactions with a positive ΔH and ΔS can never be product favored:
- This statement is false. A reaction with a positive ΔH (enthalpy) and ΔS (entropy) can still be product favored if the TΔS term dominates in the Gibbs free energy equation (ΔG = ΔH - TΔS). This means that the increase in entropy can offset the increase in enthalpy, resulting in a negative ΔG and a product-favored reaction.
If ΔG for a reaction is negative, the reaction will have an equilibrium constant greater than one:
- This statement is true. The relationship between Gibbs free energy (ΔG) and the equilibrium constant (K) is given by the equation ΔG = -RTlnK, where R is the gas constant and T is the temperature. If ΔG is negative, lnK will be positive, resulting in a K value greater than one. This indicates that the reaction strongly favors the formation of products at equilibrium.
Entropy of a substance increases on going from the liquid to the vapour state:
- This statement is true because the entropy of a substance generally increases when it changes from a more ordered state (liquid) to a more disordered state (vapour). This is because the molecules in the vapour state have more freedom of movement, leading to higher entropy.
An exothermic reaction will always be spontaneous:
- This statement is false. While exothermic reactions tend to be spontaneous because they release energy, the spontaneity of a reaction also depends on the entropy change (ΔS) and the temperature (T). A reaction can be non-spontaneous even if it is exothermic under certain conditions.
Reactions with a positive ΔH and ΔS can never be product favored:
- This statement is false. A reaction with a positive ΔH (enthalpy) and ΔS (entropy) can still be product favored if the TΔS term dominates in the Gibbs free energy equation (ΔG = ΔH - TΔS). This means that the increase in entropy can offset the increase in enthalpy, resulting in a negative ΔG and a product-favored reaction.
If ΔG for a reaction is negative, the reaction will have an equilibrium constant greater than one:
- This statement is true. The relationship between Gibbs free energy (ΔG) and the equilibrium constant (K) is given by the equation ΔG = -RTlnK, where R is the gas constant and T is the temperature. If ΔG is negative, lnK will be positive, resulting in a K value greater than one. This indicates that the reaction strongly favors the formation of products at equilibrium.
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Direction (Q. Nos. 10 and 11) This section contains 2multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of whichONE or MORE THANT ONE is correct.Q.Which of the following statements is/are true?a)The entropy of a substance increases on going from the liquid to the vapour state at any temperatureb)An exothermic reaction will always be spontaneousc)Reactions with a positive (ΔH°and ΔS°) can never be product favouredd)If ΔG° for a reaction is negative, the reaction will have an equilibrium constant i greater than oneCorrect answer is option 'A,D'. Can you explain this answer?
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Direction (Q. Nos. 10 and 11) This section contains 2multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of whichONE or MORE THANT ONE is correct.Q.Which of the following statements is/are true?a)The entropy of a substance increases on going from the liquid to the vapour state at any temperatureb)An exothermic reaction will always be spontaneousc)Reactions with a positive (ΔH°and ΔS°) can never be product favouredd)If ΔG° for a reaction is negative, the reaction will have an equilibrium constant i greater than oneCorrect answer is option 'A,D'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Direction (Q. Nos. 10 and 11) This section contains 2multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of whichONE or MORE THANT ONE is correct.Q.Which of the following statements is/are true?a)The entropy of a substance increases on going from the liquid to the vapour state at any temperatureb)An exothermic reaction will always be spontaneousc)Reactions with a positive (ΔH°and ΔS°) can never be product favouredd)If ΔG° for a reaction is negative, the reaction will have an equilibrium constant i greater than oneCorrect answer is option 'A,D'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction (Q. Nos. 10 and 11) This section contains 2multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of whichONE or MORE THANT ONE is correct.Q.Which of the following statements is/are true?a)The entropy of a substance increases on going from the liquid to the vapour state at any temperatureb)An exothermic reaction will always be spontaneousc)Reactions with a positive (ΔH°and ΔS°) can never be product favouredd)If ΔG° for a reaction is negative, the reaction will have an equilibrium constant i greater than oneCorrect answer is option 'A,D'. Can you explain this answer?.
Direction (Q. Nos. 10 and 11) This section contains 2multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of whichONE or MORE THANT ONE is correct.Q.Which of the following statements is/are true?a)The entropy of a substance increases on going from the liquid to the vapour state at any temperatureb)An exothermic reaction will always be spontaneousc)Reactions with a positive (ΔH°and ΔS°) can never be product favouredd)If ΔG° for a reaction is negative, the reaction will have an equilibrium constant i greater than oneCorrect answer is option 'A,D'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Direction (Q. Nos. 10 and 11) This section contains 2multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of whichONE or MORE THANT ONE is correct.Q.Which of the following statements is/are true?a)The entropy of a substance increases on going from the liquid to the vapour state at any temperatureb)An exothermic reaction will always be spontaneousc)Reactions with a positive (ΔH°and ΔS°) can never be product favouredd)If ΔG° for a reaction is negative, the reaction will have an equilibrium constant i greater than oneCorrect answer is option 'A,D'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction (Q. Nos. 10 and 11) This section contains 2multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of whichONE or MORE THANT ONE is correct.Q.Which of the following statements is/are true?a)The entropy of a substance increases on going from the liquid to the vapour state at any temperatureb)An exothermic reaction will always be spontaneousc)Reactions with a positive (ΔH°and ΔS°) can never be product favouredd)If ΔG° for a reaction is negative, the reaction will have an equilibrium constant i greater than oneCorrect answer is option 'A,D'. Can you explain this answer?.
Solutions for Direction (Q. Nos. 10 and 11) This section contains 2multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of whichONE or MORE THANT ONE is correct.Q.Which of the following statements is/are true?a)The entropy of a substance increases on going from the liquid to the vapour state at any temperatureb)An exothermic reaction will always be spontaneousc)Reactions with a positive (ΔH°and ΔS°) can never be product favouredd)If ΔG° for a reaction is negative, the reaction will have an equilibrium constant i greater than oneCorrect answer is option 'A,D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11.
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Direction (Q. Nos. 10 and 11) This section contains 2multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of whichONE or MORE THANT ONE is correct.Q.Which of the following statements is/are true?a)The entropy of a substance increases on going from the liquid to the vapour state at any temperatureb)An exothermic reaction will always be spontaneousc)Reactions with a positive (ΔH°and ΔS°) can never be product favouredd)If ΔG° for a reaction is negative, the reaction will have an equilibrium constant i greater than oneCorrect answer is option 'A,D'. Can you explain this answer?, a detailed solution for Direction (Q. Nos. 10 and 11) This section contains 2multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of whichONE or MORE THANT ONE is correct.Q.Which of the following statements is/are true?a)The entropy of a substance increases on going from the liquid to the vapour state at any temperatureb)An exothermic reaction will always be spontaneousc)Reactions with a positive (ΔH°and ΔS°) can never be product favouredd)If ΔG° for a reaction is negative, the reaction will have an equilibrium constant i greater than oneCorrect answer is option 'A,D'. Can you explain this answer? has been provided alongside types of Direction (Q. Nos. 10 and 11) This section contains 2multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of whichONE or MORE THANT ONE is correct.Q.Which of the following statements is/are true?a)The entropy of a substance increases on going from the liquid to the vapour state at any temperatureb)An exothermic reaction will always be spontaneousc)Reactions with a positive (ΔH°and ΔS°) can never be product favouredd)If ΔG° for a reaction is negative, the reaction will have an equilibrium constant i greater than oneCorrect answer is option 'A,D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Direction (Q. Nos. 10 and 11) This section contains 2multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of whichONE or MORE THANT ONE is correct.Q.Which of the following statements is/are true?a)The entropy of a substance increases on going from the liquid to the vapour state at any temperatureb)An exothermic reaction will always be spontaneousc)Reactions with a positive (ΔH°and ΔS°) can never be product favouredd)If ΔG° for a reaction is negative, the reaction will have an equilibrium constant i greater than oneCorrect answer is option 'A,D'. Can you explain this answer? tests, examples and also practice Class 11 tests.
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