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The rate of evaporation of a liquid is always faster at a higher temperature because:
- a)The entropy of vaporization is always endothermic
- b)The entropy of vaporization is always exothermic
- c)The entropy of vaporization is zero
- d)The internal pressure of the liquid is less than that of the gas
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
The rate of evaporation of a liquid is always faster at a higher tempe...
**Explanation:**
Evaporation is a process in which the molecules of a liquid gain enough energy to overcome the attractive forces between them and escape into the gas phase. The rate of evaporation is influenced by several factors, including temperature, surface area, and vapor pressure. However, the rate of evaporation is always faster at a higher temperature.
**Entropy of Vaporization:**
The entropy of vaporization is a thermodynamic quantity that measures the increase in disorder or randomness when a substance changes from a liquid to a gas. It is a measure of the number of ways the molecules can arrange themselves in the gas phase compared to the liquid phase.
**Endothermic Process:**
When a liquid evaporates, it requires energy to break the intermolecular forces holding the molecules together. This energy is typically supplied in the form of heat. The process of evaporation is endothermic because it absorbs heat from the surroundings. As a result, the temperature of the liquid decreases during evaporation.
**Higher Temperature and Increased Kinetic Energy:**
When the temperature of a liquid increases, the average kinetic energy of its molecules also increases. This means that the molecules have more energy to overcome the intermolecular forces and escape into the gas phase. As a result, more molecules can evaporate per unit time, leading to a faster rate of evaporation.
**Impact of Temperature on Vapor Pressure:**
The vapor pressure of a liquid is the pressure exerted by its molecules in the gas phase when the liquid and gas are in equilibrium. It is determined by the temperature and the intermolecular forces in the liquid. At higher temperatures, the vapor pressure of a liquid increases because more molecules have enough energy to escape into the gas phase.
**Conclusion:**
In summary, the rate of evaporation of a liquid is always faster at a higher temperature because the increased temperature leads to an increase in the average kinetic energy of the molecules. This allows more molecules to overcome the intermolecular forces and escape into the gas phase. The process of evaporation is endothermic, as it requires energy to break the intermolecular forces.
Evaporation is a process in which the molecules of a liquid gain enough energy to overcome the attractive forces between them and escape into the gas phase. The rate of evaporation is influenced by several factors, including temperature, surface area, and vapor pressure. However, the rate of evaporation is always faster at a higher temperature.
**Entropy of Vaporization:**
The entropy of vaporization is a thermodynamic quantity that measures the increase in disorder or randomness when a substance changes from a liquid to a gas. It is a measure of the number of ways the molecules can arrange themselves in the gas phase compared to the liquid phase.
**Endothermic Process:**
When a liquid evaporates, it requires energy to break the intermolecular forces holding the molecules together. This energy is typically supplied in the form of heat. The process of evaporation is endothermic because it absorbs heat from the surroundings. As a result, the temperature of the liquid decreases during evaporation.
**Higher Temperature and Increased Kinetic Energy:**
When the temperature of a liquid increases, the average kinetic energy of its molecules also increases. This means that the molecules have more energy to overcome the intermolecular forces and escape into the gas phase. As a result, more molecules can evaporate per unit time, leading to a faster rate of evaporation.
**Impact of Temperature on Vapor Pressure:**
The vapor pressure of a liquid is the pressure exerted by its molecules in the gas phase when the liquid and gas are in equilibrium. It is determined by the temperature and the intermolecular forces in the liquid. At higher temperatures, the vapor pressure of a liquid increases because more molecules have enough energy to escape into the gas phase.
**Conclusion:**
In summary, the rate of evaporation of a liquid is always faster at a higher temperature because the increased temperature leads to an increase in the average kinetic energy of the molecules. This allows more molecules to overcome the intermolecular forces and escape into the gas phase. The process of evaporation is endothermic, as it requires energy to break the intermolecular forces.
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The rate of evaporation of a liquid is always faster at a higher temperature because:a)The entropy of vaporization is always endothermicb)The entropy of vaporization is always exothermicc)The entropy of vaporization is zerod)The internal pressure of the liquid is less than that of the gasCorrect answer is option 'A'. Can you explain this answer?
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The rate of evaporation of a liquid is always faster at a higher temperature because:a)The entropy of vaporization is always endothermicb)The entropy of vaporization is always exothermicc)The entropy of vaporization is zerod)The internal pressure of the liquid is less than that of the gasCorrect answer is option 'A'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about The rate of evaporation of a liquid is always faster at a higher temperature because:a)The entropy of vaporization is always endothermicb)The entropy of vaporization is always exothermicc)The entropy of vaporization is zerod)The internal pressure of the liquid is less than that of the gasCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The rate of evaporation of a liquid is always faster at a higher temperature because:a)The entropy of vaporization is always endothermicb)The entropy of vaporization is always exothermicc)The entropy of vaporization is zerod)The internal pressure of the liquid is less than that of the gasCorrect answer is option 'A'. Can you explain this answer?.
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