Class 11 Exam > Class 11 Questions > Energy required to dissociate 4 g of gaseous ...
Start Learning for Free
Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C . The bond energy of H-H bond will be:
- a)104 kcal
- b)10.4 kcal
- c)1.04 kcal
- d)1040 kcal
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Energy required to dissociate 4 g of gaseous hydrogen into free gaseou...
Bond enthalpy is defined as amount of energy required to break one mole of bonds of a particular type between atoms in gaseous state.
4/2 = 2 moles
208/2 = 104 kcal
Most Upvoted Answer
Energy required to dissociate 4 g of gaseous hydrogen into free gaseou...
Bond energy is the amount of energy required to break a bond and separate the atoms involved. In this case, we are given the energy required to dissociate 4 grams of gaseous hydrogen into free gaseous atoms, which is 208 kcal.
To find the bond energy of the H-H bond, we need to calculate the energy required to break one mole of H-H bonds.
1. Calculate the number of moles of hydrogen:
- The molar mass of hydrogen is 2 g/mol.
- Given that we have 4 grams of hydrogen, we can calculate the number of moles using the formula:
Moles = Mass / Molar mass
Moles = 4 g / 2 g/mol
Moles = 2 moles
2. Calculate the energy required to dissociate one mole of hydrogen:
- The given energy is for 4 grams of hydrogen, so we need to divide it by 2 to get the energy for 1 mole.
Energy for 1 mole = 208 kcal / 2
Energy for 1 mole = 104 kcal
3. Calculate the bond energy of the H-H bond:
- The bond energy is the energy required to dissociate one mole of the H-H bond.
Bond energy = Energy for 1 mole
Bond energy = 104 kcal
Therefore, the bond energy of the H-H bond is 104 kcal, which corresponds to option A.
To find the bond energy of the H-H bond, we need to calculate the energy required to break one mole of H-H bonds.
1. Calculate the number of moles of hydrogen:
- The molar mass of hydrogen is 2 g/mol.
- Given that we have 4 grams of hydrogen, we can calculate the number of moles using the formula:
Moles = Mass / Molar mass
Moles = 4 g / 2 g/mol
Moles = 2 moles
2. Calculate the energy required to dissociate one mole of hydrogen:
- The given energy is for 4 grams of hydrogen, so we need to divide it by 2 to get the energy for 1 mole.
Energy for 1 mole = 208 kcal / 2
Energy for 1 mole = 104 kcal
3. Calculate the bond energy of the H-H bond:
- The bond energy is the energy required to dissociate one mole of the H-H bond.
Bond energy = Energy for 1 mole
Bond energy = 104 kcal
Therefore, the bond energy of the H-H bond is 104 kcal, which corresponds to option A.
|
Explore Courses for Class 11 exam
|
|
Top Courses for Class 11View all
Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C . The bond energy of H-H bond will be:a)104 kcalb)10.4 kcalc)1.04 kcald)1040 kcalCorrect answer is option 'A'. Can you explain this answer?
Question Description
Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C . The bond energy of H-H bond will be:a)104 kcalb)10.4 kcalc)1.04 kcald)1040 kcalCorrect answer is option 'A'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C . The bond energy of H-H bond will be:a)104 kcalb)10.4 kcalc)1.04 kcald)1040 kcalCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C . The bond energy of H-H bond will be:a)104 kcalb)10.4 kcalc)1.04 kcald)1040 kcalCorrect answer is option 'A'. Can you explain this answer?.
Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C . The bond energy of H-H bond will be:a)104 kcalb)10.4 kcalc)1.04 kcald)1040 kcalCorrect answer is option 'A'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C . The bond energy of H-H bond will be:a)104 kcalb)10.4 kcalc)1.04 kcald)1040 kcalCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C . The bond energy of H-H bond will be:a)104 kcalb)10.4 kcalc)1.04 kcald)1040 kcalCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C . The bond energy of H-H bond will be:a)104 kcalb)10.4 kcalc)1.04 kcald)1040 kcalCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11.
Download more important topics, notes, lectures and mock test series for Class 11 Exam by signing up for free.
Here you can find the meaning of Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C . The bond energy of H-H bond will be:a)104 kcalb)10.4 kcalc)1.04 kcald)1040 kcalCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C . The bond energy of H-H bond will be:a)104 kcalb)10.4 kcalc)1.04 kcald)1040 kcalCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C . The bond energy of H-H bond will be:a)104 kcalb)10.4 kcalc)1.04 kcald)1040 kcalCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C . The bond energy of H-H bond will be:a)104 kcalb)10.4 kcalc)1.04 kcald)1040 kcalCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Energy required to dissociate 4 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C . The bond energy of H-H bond will be:a)104 kcalb)10.4 kcalc)1.04 kcald)1040 kcalCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 11 tests.
|
|
Explore Courses for Class 11 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup