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Which of the following are correct statements
- a)Spontaneous adsorption of gases on solid surface is an exothermic process as entropy decreases during adsorption
- b)Formation of micelles takes place when temperature is below Kraft Temperature (Tk) and concentration is above critical micelle concentration (CMC)
- c)A colloid of Fe(OH)3 is prepared by adding a little excess (required to completely precipitate Fe3+ ions as Fe(OH)3)) of NaOH in FeCI3 solution the particles of this sol will more towards cathode during electrophoresis.
- d)According to Hardy-Schulze rules the coagulation (flocculating) value of Fe3+ ion will be more than Ba2+ or Na+
Correct answer is option 'A,C'. Can you explain this answer?
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Verified Answer
Which of the following are correct statementsa) Spontaneous adsorption...
(A) Δ G = Δ HD - T Δ BS < O as Δ S < 0 so Δ H has to be negative
(B) Micelles formation will take place above T k and above CMC
(C) This solution will be negatively charged.
(D) Fe3+ ions will have greater flocculatibility power so smaller flocculating value.
Most Upvoted Answer
Which of the following are correct statementsa) Spontaneous adsorption...
Explanation:
a) Spontaneous adsorption of gases on solid surface:
- When gases are adsorbed on a solid surface, the process is exothermic as it releases energy in the form of heat.
- The decrease in entropy during adsorption indicates a decrease in randomness, which is characteristic of an exothermic process.
c) Electrophoresis of Fe(OH)3 colloid:
- When a colloid of Fe(OH)3 is prepared by adding excess NaOH to a FeCl3 solution, the particles of the sol will move towards the cathode during electrophoresis.
- This movement is due to the negatively charged Fe(OH)3 particles being attracted to the positively charged cathode in the electric field.
Therefore, the correct statements are a) and c).
a) Spontaneous adsorption of gases on solid surface:
- When gases are adsorbed on a solid surface, the process is exothermic as it releases energy in the form of heat.
- The decrease in entropy during adsorption indicates a decrease in randomness, which is characteristic of an exothermic process.
c) Electrophoresis of Fe(OH)3 colloid:
- When a colloid of Fe(OH)3 is prepared by adding excess NaOH to a FeCl3 solution, the particles of the sol will move towards the cathode during electrophoresis.
- This movement is due to the negatively charged Fe(OH)3 particles being attracted to the positively charged cathode in the electric field.
Therefore, the correct statements are a) and c).
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Which of the following are correct statementsa) Spontaneous adsorption of gases on solid surface is an exothermic process as entropy decreases during adsorptionb) Formation of micelles takes place when temperature is below Kraft Temperature (Tk) and concentration is above critical micelle concentration (CMC)c) A colloid of Fe(OH)3 is prepared by adding a little excess (required to completely precipitate Fe3+ ions as Fe(OH)3)) of NaOH in FeCI3 solution the particles of this sol will more towards cathode during electrophoresis.d) According to Hardy-Schulze rules the coagulation (flocculating) value of Fe3+ ion will be more than Ba2+ or Na+Correct answer is option 'A,C'. Can you explain this answer?
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Which of the following are correct statementsa) Spontaneous adsorption of gases on solid surface is an exothermic process as entropy decreases during adsorptionb) Formation of micelles takes place when temperature is below Kraft Temperature (Tk) and concentration is above critical micelle concentration (CMC)c) A colloid of Fe(OH)3 is prepared by adding a little excess (required to completely precipitate Fe3+ ions as Fe(OH)3)) of NaOH in FeCI3 solution the particles of this sol will more towards cathode during electrophoresis.d) According to Hardy-Schulze rules the coagulation (flocculating) value of Fe3+ ion will be more than Ba2+ or Na+Correct answer is option 'A,C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Which of the following are correct statementsa) Spontaneous adsorption of gases on solid surface is an exothermic process as entropy decreases during adsorptionb) Formation of micelles takes place when temperature is below Kraft Temperature (Tk) and concentration is above critical micelle concentration (CMC)c) A colloid of Fe(OH)3 is prepared by adding a little excess (required to completely precipitate Fe3+ ions as Fe(OH)3)) of NaOH in FeCI3 solution the particles of this sol will more towards cathode during electrophoresis.d) According to Hardy-Schulze rules the coagulation (flocculating) value of Fe3+ ion will be more than Ba2+ or Na+Correct answer is option 'A,C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following are correct statementsa) Spontaneous adsorption of gases on solid surface is an exothermic process as entropy decreases during adsorptionb) Formation of micelles takes place when temperature is below Kraft Temperature (Tk) and concentration is above critical micelle concentration (CMC)c) A colloid of Fe(OH)3 is prepared by adding a little excess (required to completely precipitate Fe3+ ions as Fe(OH)3)) of NaOH in FeCI3 solution the particles of this sol will more towards cathode during electrophoresis.d) According to Hardy-Schulze rules the coagulation (flocculating) value of Fe3+ ion will be more than Ba2+ or Na+Correct answer is option 'A,C'. Can you explain this answer?.
Which of the following are correct statementsa) Spontaneous adsorption of gases on solid surface is an exothermic process as entropy decreases during adsorptionb) Formation of micelles takes place when temperature is below Kraft Temperature (Tk) and concentration is above critical micelle concentration (CMC)c) A colloid of Fe(OH)3 is prepared by adding a little excess (required to completely precipitate Fe3+ ions as Fe(OH)3)) of NaOH in FeCI3 solution the particles of this sol will more towards cathode during electrophoresis.d) According to Hardy-Schulze rules the coagulation (flocculating) value of Fe3+ ion will be more than Ba2+ or Na+Correct answer is option 'A,C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Which of the following are correct statementsa) Spontaneous adsorption of gases on solid surface is an exothermic process as entropy decreases during adsorptionb) Formation of micelles takes place when temperature is below Kraft Temperature (Tk) and concentration is above critical micelle concentration (CMC)c) A colloid of Fe(OH)3 is prepared by adding a little excess (required to completely precipitate Fe3+ ions as Fe(OH)3)) of NaOH in FeCI3 solution the particles of this sol will more towards cathode during electrophoresis.d) According to Hardy-Schulze rules the coagulation (flocculating) value of Fe3+ ion will be more than Ba2+ or Na+Correct answer is option 'A,C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following are correct statementsa) Spontaneous adsorption of gases on solid surface is an exothermic process as entropy decreases during adsorptionb) Formation of micelles takes place when temperature is below Kraft Temperature (Tk) and concentration is above critical micelle concentration (CMC)c) A colloid of Fe(OH)3 is prepared by adding a little excess (required to completely precipitate Fe3+ ions as Fe(OH)3)) of NaOH in FeCI3 solution the particles of this sol will more towards cathode during electrophoresis.d) According to Hardy-Schulze rules the coagulation (flocculating) value of Fe3+ ion will be more than Ba2+ or Na+Correct answer is option 'A,C'. Can you explain this answer?.
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ample number of questions to practice Which of the following are correct statementsa) Spontaneous adsorption of gases on solid surface is an exothermic process as entropy decreases during adsorptionb) Formation of micelles takes place when temperature is below Kraft Temperature (Tk) and concentration is above critical micelle concentration (CMC)c) A colloid of Fe(OH)3 is prepared by adding a little excess (required to completely precipitate Fe3+ ions as Fe(OH)3)) of NaOH in FeCI3 solution the particles of this sol will more towards cathode during electrophoresis.d) According to Hardy-Schulze rules the coagulation (flocculating) value of Fe3+ ion will be more than Ba2+ or Na+Correct answer is option 'A,C'. Can you explain this answer? tests, examples and also practice JEE tests.
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