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Sulphur powder dissolves carbon disulphide to form yellow coloured solution, but solid sulphur reappears by :
- a)evaporation of carbon disulphide
- b)sublimation of sulphur
- c)cooling the solution
- d)distillation
Correct answer is option 'A'. Can you explain this answer?
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Sulphur powder dissolves carbon disulphide to form yellow coloured so...
Carbon disulfide evaporates at room temperature, and the vapour is more than twice as heavy as air. It easily explodes in the air and also catches fire very easily. In nature, small amounts of carbon disulfide are found in gases released to the earth's surface as, for example, in volcanic eruptions or over marshes.
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Sulphur powder dissolves carbon disulphide to form yellow coloured so...
Explanation:
When sulphur powder is added to carbon disulphide, it dissolves to form a yellow-colored solution. However, when the solution is left undisturbed or allowed to stand, the solid sulphur reappears.
Reason:
The reoccurrence of solid sulphur can be explained by the process of evaporation of carbon disulphide.
Evaporation of Carbon Disulphide:
Evaporation is the process in which a liquid changes into its gaseous state at a temperature below its boiling point. In the case of carbon disulphide, it has a boiling point of 46.3°C. However, evaporation can occur at temperatures below the boiling point as well.
When the yellow-colored solution of sulphur powder and carbon disulphide is left undisturbed, the volatile carbon disulphide begins to evaporate. As carbon disulphide evaporates, the concentration of the solvent decreases, leading to the saturation point being reached. At this point, the solvent can no longer dissolve the solute (sulphur powder) and solid sulphur starts to reappear.
Conclusion:
Therefore, the solid sulphur reappears when the yellow-colored solution of sulphur powder and carbon disulphide is left undisturbed due to the evaporation of carbon disulphide. This process leads to a decrease in the concentration of the solvent, causing solid sulphur to come out of the solution.
When sulphur powder is added to carbon disulphide, it dissolves to form a yellow-colored solution. However, when the solution is left undisturbed or allowed to stand, the solid sulphur reappears.
Reason:
The reoccurrence of solid sulphur can be explained by the process of evaporation of carbon disulphide.
Evaporation of Carbon Disulphide:
Evaporation is the process in which a liquid changes into its gaseous state at a temperature below its boiling point. In the case of carbon disulphide, it has a boiling point of 46.3°C. However, evaporation can occur at temperatures below the boiling point as well.
When the yellow-colored solution of sulphur powder and carbon disulphide is left undisturbed, the volatile carbon disulphide begins to evaporate. As carbon disulphide evaporates, the concentration of the solvent decreases, leading to the saturation point being reached. At this point, the solvent can no longer dissolve the solute (sulphur powder) and solid sulphur starts to reappear.
Conclusion:
Therefore, the solid sulphur reappears when the yellow-colored solution of sulphur powder and carbon disulphide is left undisturbed due to the evaporation of carbon disulphide. This process leads to a decrease in the concentration of the solvent, causing solid sulphur to come out of the solution.
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Sulphur powder dissolves carbon disulphide to form yellow coloured solution, but solid sulphur reappears by :a)evaporation of carbon disulphideb)sublimation of sulphurc)cooling the solutiond)distillationCorrect answer is option 'A'. Can you explain this answer?
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Sulphur powder dissolves carbon disulphide to form yellow coloured solution, but solid sulphur reappears by :a)evaporation of carbon disulphideb)sublimation of sulphurc)cooling the solutiond)distillationCorrect answer is option 'A'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Sulphur powder dissolves carbon disulphide to form yellow coloured solution, but solid sulphur reappears by :a)evaporation of carbon disulphideb)sublimation of sulphurc)cooling the solutiond)distillationCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Sulphur powder dissolves carbon disulphide to form yellow coloured solution, but solid sulphur reappears by :a)evaporation of carbon disulphideb)sublimation of sulphurc)cooling the solutiond)distillationCorrect answer is option 'A'. Can you explain this answer?.
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