Class 11 Exam > Class 11 Questions > Based on the following thermochemical data of...
Start Learning for Free
Based on the following thermochemical data of the given process, answer the questions.
Q. Bond energy of (C—H) bond is
- a)82 kcal mol-1
- b)-99 kcal mol-1
- c)99 kcal mol-1
- d)112 kcal mol-1
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Based on the following thermochemical data of the given process, answe...
For C3H8 : 3C + 4H2 → C3H8 ; ∆H1
For C3H8 : 2C + 3H2 → C2H6 ; ∆H2
∆H1 = -[2(C-C)+8(C-H)]+[3Cs→g+4(H-H)] -(I)
∆H2 = -[1(C-C)+6(C-H)]+[2Cs→g+3(H-H)] -(2)
Let bond energy of C-C be x kcal and bond energy of C-H be y kcal.
From eqn I and 2
∆H1 = -[2x+8y]+[3×172+4×104] -(3)
∆H2 = -[x+6y]+[2×172+3×104] -(4)
Also given, C+O2 → CO2; ∆H = -94.0 kcal -(5)
H2 + ½ O2 → H2O ; ∆H = -68.0 kcal -(6)
C2H6 + 7/2 O2 → 2CO2 + 3H2O ; ∆H = -372 kcal -(7)
C3H8 + 5O2 → 3CO2 + 4H2O ; ∆H = -530 kcal -(8)
By inspection method, 2 × (5) + 3 × (6) - (7) gives
2C + 3H2 → C2H6 ; ∆H2 = -20 kcal
And 3×(5) + 4×(6) -(8)
3C + 4H2 → C3H8 ; ∆H3 = -20 kcal
By eqn. (3), (4), (9) and (10)
x+6y = 676
2x+8y = 956
x = 82 kcal and y = 99 kcal
For C3H8 : 2C + 3H2 → C2H6 ; ∆H2
∆H1 = -[2(C-C)+8(C-H)]+[3Cs→g+4(H-H)] -(I)
∆H2 = -[1(C-C)+6(C-H)]+[2Cs→g+3(H-H)] -(2)
Let bond energy of C-C be x kcal and bond energy of C-H be y kcal.
From eqn I and 2
∆H1 = -[2x+8y]+[3×172+4×104] -(3)
∆H2 = -[x+6y]+[2×172+3×104] -(4)
Also given, C+O2 → CO2; ∆H = -94.0 kcal -(5)
H2 + ½ O2 → H2O ; ∆H = -68.0 kcal -(6)
C2H6 + 7/2 O2 → 2CO2 + 3H2O ; ∆H = -372 kcal -(7)
C3H8 + 5O2 → 3CO2 + 4H2O ; ∆H = -530 kcal -(8)
By inspection method, 2 × (5) + 3 × (6) - (7) gives
2C + 3H2 → C2H6 ; ∆H2 = -20 kcal
And 3×(5) + 4×(6) -(8)
3C + 4H2 → C3H8 ; ∆H3 = -20 kcal
By eqn. (3), (4), (9) and (10)
x+6y = 676
2x+8y = 956
x = 82 kcal and y = 99 kcal
|
Explore Courses for Class 11 exam
|
|
Top Courses for Class 11View all
Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C—H) bond isa)82 kcal mol-1b)-99 kcal mol-1c)99 kcal mol-1d)112 kcal mol-1Correct answer is option 'C'. Can you explain this answer?
Question Description
Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C—H) bond isa)82 kcal mol-1b)-99 kcal mol-1c)99 kcal mol-1d)112 kcal mol-1Correct answer is option 'C'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C—H) bond isa)82 kcal mol-1b)-99 kcal mol-1c)99 kcal mol-1d)112 kcal mol-1Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C—H) bond isa)82 kcal mol-1b)-99 kcal mol-1c)99 kcal mol-1d)112 kcal mol-1Correct answer is option 'C'. Can you explain this answer?.
Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C—H) bond isa)82 kcal mol-1b)-99 kcal mol-1c)99 kcal mol-1d)112 kcal mol-1Correct answer is option 'C'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C—H) bond isa)82 kcal mol-1b)-99 kcal mol-1c)99 kcal mol-1d)112 kcal mol-1Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C—H) bond isa)82 kcal mol-1b)-99 kcal mol-1c)99 kcal mol-1d)112 kcal mol-1Correct answer is option 'C'. Can you explain this answer?.
Solutions for Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C—H) bond isa)82 kcal mol-1b)-99 kcal mol-1c)99 kcal mol-1d)112 kcal mol-1Correct answer is option 'C'. 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 Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C—H) bond isa)82 kcal mol-1b)-99 kcal mol-1c)99 kcal mol-1d)112 kcal mol-1Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C—H) bond isa)82 kcal mol-1b)-99 kcal mol-1c)99 kcal mol-1d)112 kcal mol-1Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C—H) bond isa)82 kcal mol-1b)-99 kcal mol-1c)99 kcal mol-1d)112 kcal mol-1Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C—H) bond isa)82 kcal mol-1b)-99 kcal mol-1c)99 kcal mol-1d)112 kcal mol-1Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C—H) bond isa)82 kcal mol-1b)-99 kcal mol-1c)99 kcal mol-1d)112 kcal mol-1Correct answer is option 'C'. 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
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup