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Intermolecular hydrogen bonding increases the enthalpy of vapourization of a liquid due to the:
- a)decrease in the attraction between molecules
- b)increase in the attraction between molecules
- c)decrease in the molar mass of unassociated liquid molecules
- d)increase in the effective molar mass of hydrogen - bonded molecules
Correct answer is option 'B,D'. Can you explain this answer?
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Most Upvoted Answer
Intermolecular hydrogen bonding increases the enthalpy of vapourizatio...
Explanation:
Intermolecular hydrogen bonding is a type of bonding between molecules in which hydrogen atoms are attracted to highly electronegative atoms such as oxygen, nitrogen, or fluorine. This bonding is responsible for several properties of a liquid, including its enthalpy of vaporization.
Increase in the attraction between molecules:
Intermolecular hydrogen bonding increases the attraction between molecules in a liquid. This is because the hydrogen atoms in one molecule are attracted to the electronegative atoms in neighboring molecules. This attraction causes the molecules to stick together more strongly, making it harder to separate them and vaporize the liquid. Thus, an increase in the attraction between molecules due to hydrogen bonding leads to an increase in the enthalpy of vaporization.
Increase in the effective molar mass of hydrogen-bonded molecules:
When molecules are bonded together by intermolecular hydrogen bonding, the effective molar mass of the bonded molecules increases. This is because the hydrogen bonding causes the molecules to stick together more strongly, making it harder to separate them. As a result, the average mass of the molecules in the liquid increases, which increases the energy required to vaporize the liquid. Thus, an increase in the effective molar mass of hydrogen-bonded molecules also leads to an increase in the enthalpy of vaporization.
Conclusion:
In conclusion, intermolecular hydrogen bonding increases the enthalpy of vaporization of a liquid due to the increase in the attraction between molecules and the increase in the effective molar mass of hydrogen-bonded molecules.
Intermolecular hydrogen bonding is a type of bonding between molecules in which hydrogen atoms are attracted to highly electronegative atoms such as oxygen, nitrogen, or fluorine. This bonding is responsible for several properties of a liquid, including its enthalpy of vaporization.
Increase in the attraction between molecules:
Intermolecular hydrogen bonding increases the attraction between molecules in a liquid. This is because the hydrogen atoms in one molecule are attracted to the electronegative atoms in neighboring molecules. This attraction causes the molecules to stick together more strongly, making it harder to separate them and vaporize the liquid. Thus, an increase in the attraction between molecules due to hydrogen bonding leads to an increase in the enthalpy of vaporization.
Increase in the effective molar mass of hydrogen-bonded molecules:
When molecules are bonded together by intermolecular hydrogen bonding, the effective molar mass of the bonded molecules increases. This is because the hydrogen bonding causes the molecules to stick together more strongly, making it harder to separate them. As a result, the average mass of the molecules in the liquid increases, which increases the energy required to vaporize the liquid. Thus, an increase in the effective molar mass of hydrogen-bonded molecules also leads to an increase in the enthalpy of vaporization.
Conclusion:
In conclusion, intermolecular hydrogen bonding increases the enthalpy of vaporization of a liquid due to the increase in the attraction between molecules and the increase in the effective molar mass of hydrogen-bonded molecules.
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Community Answer
Intermolecular hydrogen bonding increases the enthalpy of vapourizatio...
Hydrogen bonding between the molecules strengthens
the attraction between molecules in addition to van der Waals force. Thus, additional energy is required for breaking the H-BONDS. It also results in association of molecules and the associated molecules behave as a single molecule thereby increasing the effective molar mass.
the attraction between molecules in addition to van der Waals force. Thus, additional energy is required for breaking the H-BONDS. It also results in association of molecules and the associated molecules behave as a single molecule thereby increasing the effective molar mass.
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Intermolecular hydrogen bonding increases the enthalpy of vapourization of a liquid due to the:a)decrease in the attraction between moleculesb)increase in the attraction between moleculesc)decrease in the molar mass of unassociated liquid moleculesd)increase in the effective molar mass of hydrogen - bonded moleculesCorrect answer is option 'B,D'. Can you explain this answer?
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Intermolecular hydrogen bonding increases the enthalpy of vapourization of a liquid due to the:a)decrease in the attraction between moleculesb)increase in the attraction between moleculesc)decrease in the molar mass of unassociated liquid moleculesd)increase in the effective molar mass of hydrogen - bonded moleculesCorrect answer is option 'B,D'. 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 Intermolecular hydrogen bonding increases the enthalpy of vapourization of a liquid due to the:a)decrease in the attraction between moleculesb)increase in the attraction between moleculesc)decrease in the molar mass of unassociated liquid moleculesd)increase in the effective molar mass of hydrogen - bonded moleculesCorrect answer is option 'B,D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Intermolecular hydrogen bonding increases the enthalpy of vapourization of a liquid due to the:a)decrease in the attraction between moleculesb)increase in the attraction between moleculesc)decrease in the molar mass of unassociated liquid moleculesd)increase in the effective molar mass of hydrogen - bonded moleculesCorrect answer is option 'B,D'. Can you explain this answer?.
Intermolecular hydrogen bonding increases the enthalpy of vapourization of a liquid due to the:a)decrease in the attraction between moleculesb)increase in the attraction between moleculesc)decrease in the molar mass of unassociated liquid moleculesd)increase in the effective molar mass of hydrogen - bonded moleculesCorrect answer is option 'B,D'. 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 Intermolecular hydrogen bonding increases the enthalpy of vapourization of a liquid due to the:a)decrease in the attraction between moleculesb)increase in the attraction between moleculesc)decrease in the molar mass of unassociated liquid moleculesd)increase in the effective molar mass of hydrogen - bonded moleculesCorrect answer is option 'B,D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Intermolecular hydrogen bonding increases the enthalpy of vapourization of a liquid due to the:a)decrease in the attraction between moleculesb)increase in the attraction between moleculesc)decrease in the molar mass of unassociated liquid moleculesd)increase in the effective molar mass of hydrogen - bonded moleculesCorrect answer is option 'B,D'. Can you explain this answer?.
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Intermolecular hydrogen bonding increases the enthalpy of vapourization of a liquid due to the:a)decrease in the attraction between moleculesb)increase in the attraction between moleculesc)decrease in the molar mass of unassociated liquid moleculesd)increase in the effective molar mass of hydrogen - bonded moleculesCorrect answer is option 'B,D'. Can you explain this answer?, a detailed solution for Intermolecular hydrogen bonding increases the enthalpy of vapourization of a liquid due to the:a)decrease in the attraction between moleculesb)increase in the attraction between moleculesc)decrease in the molar mass of unassociated liquid moleculesd)increase in the effective molar mass of hydrogen - bonded moleculesCorrect answer is option 'B,D'. Can you explain this answer? has been provided alongside types of Intermolecular hydrogen bonding increases the enthalpy of vapourization of a liquid due to the:a)decrease in the attraction between moleculesb)increase in the attraction between moleculesc)decrease in the molar mass of unassociated liquid moleculesd)increase in the effective molar mass of hydrogen - bonded moleculesCorrect answer is option 'B,D'. Can you explain this answer? theory, EduRev gives you an
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