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Direction (Q. Nos. 14 -15) This section contains a paragraph, wach describing theory, experiments, data etc. three Questions related to paragraph have been given.Each question have only one correct answer among the four given ptions (a),(b),(c),(d).
Based on the following thermochemical data of the given process, answer the questions.
Q. Bond energy of (C— C) bond is
- a)100 kcal mol-1
- b)-82 kcalmol-1
- c)78 kcal mol-1
- d)82 kcal mol-1
Correct answer is option 'D'. Can you explain this answer?
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Direction (Q. Nos. 14 -15) This section contains a paragraph, wach des...
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
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Direction (Q. Nos. 14 -15) This section contains a paragraph, wach describing theory, experiments, data etc. three Questions related to paragraph have been given.Each question have only one correct answer among the four given ptions (a),(b),(c),(d).Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C— C) bond isa)100 kcal mol-1b)-82 kcalmol-1c)78 kcal mol-1d)82 kcal mol-1Correct answer is option 'D'. Can you explain this answer?
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Direction (Q. Nos. 14 -15) This section contains a paragraph, wach describing theory, experiments, data etc. three Questions related to paragraph have been given.Each question have only one correct answer among the four given ptions (a),(b),(c),(d).Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C— C) bond isa)100 kcal mol-1b)-82 kcalmol-1c)78 kcal mol-1d)82 kcal mol-1Correct answer is option 'D'. 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 Direction (Q. Nos. 14 -15) This section contains a paragraph, wach describing theory, experiments, data etc. three Questions related to paragraph have been given.Each question have only one correct answer among the four given ptions (a),(b),(c),(d).Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C— C) bond isa)100 kcal mol-1b)-82 kcalmol-1c)78 kcal mol-1d)82 kcal mol-1Correct answer is option 'D'. 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 Direction (Q. Nos. 14 -15) This section contains a paragraph, wach describing theory, experiments, data etc. three Questions related to paragraph have been given.Each question have only one correct answer among the four given ptions (a),(b),(c),(d).Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C— C) bond isa)100 kcal mol-1b)-82 kcalmol-1c)78 kcal mol-1d)82 kcal mol-1Correct answer is option 'D'. Can you explain this answer?.
Direction (Q. Nos. 14 -15) This section contains a paragraph, wach describing theory, experiments, data etc. three Questions related to paragraph have been given.Each question have only one correct answer among the four given ptions (a),(b),(c),(d).Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C— C) bond isa)100 kcal mol-1b)-82 kcalmol-1c)78 kcal mol-1d)82 kcal mol-1Correct answer is option 'D'. 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 Direction (Q. Nos. 14 -15) This section contains a paragraph, wach describing theory, experiments, data etc. three Questions related to paragraph have been given.Each question have only one correct answer among the four given ptions (a),(b),(c),(d).Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C— C) bond isa)100 kcal mol-1b)-82 kcalmol-1c)78 kcal mol-1d)82 kcal mol-1Correct answer is option 'D'. 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 Direction (Q. Nos. 14 -15) This section contains a paragraph, wach describing theory, experiments, data etc. three Questions related to paragraph have been given.Each question have only one correct answer among the four given ptions (a),(b),(c),(d).Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C— C) bond isa)100 kcal mol-1b)-82 kcalmol-1c)78 kcal mol-1d)82 kcal mol-1Correct answer is option 'D'. Can you explain this answer?.
Solutions for Direction (Q. Nos. 14 -15) This section contains a paragraph, wach describing theory, experiments, data etc. three Questions related to paragraph have been given.Each question have only one correct answer among the four given ptions (a),(b),(c),(d).Based on the following thermochemical data of the given process, answer the questions.Q.Bond energy of (C— C) bond isa)100 kcal mol-1b)-82 kcalmol-1c)78 kcal mol-1d)82 kcal mol-1Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11.
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