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Which is/are correct statements):
  • a)
    Heat of formation of CO2 is -68 kcal mol -1 
  • b)
    Heat of combustion of C(s) is -68 kcal mol -1 
  • c)
    Heat of combustion of CO(g) -68 kcal mol -1 
  • d)
    Heat of formation of CO(g) is - 26 kcal mol -1 
Correct answer is option 'C,D'. Can you explain this answer?
Most Upvoted Answer
Which is/are correct statements):a)Heat of formation of CO2 is -68 kca...
In first equation, the combustion of carbon is not complete i.e., it is forming still. Hence in the first, heat of combustion of CO(g) is 26 kcal per mol. 
          In the second reaction, the combustion of carbon is complete. Hence, heat of combustion of CO is 68 kcal per mol.
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Which is/are correct statements):a)Heat of formation of CO2 is -68 kcal mol -1b)Heat of combustion of C(s) is -68 kcal mol -1c)Heat of combustion of CO(g) -68 kcal mol -1d)Heat of formation of CO(g) is - 26 kcal mol -1Correct answer is option 'C,D'. Can you explain this answer?
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Which is/are correct statements):a)Heat of formation of CO2 is -68 kcal mol -1b)Heat of combustion of C(s) is -68 kcal mol -1c)Heat of combustion of CO(g) -68 kcal mol -1d)Heat of formation of CO(g) is - 26 kcal mol -1Correct answer is option 'C,D'. 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 Which is/are correct statements):a)Heat of formation of CO2 is -68 kcal mol -1b)Heat of combustion of C(s) is -68 kcal mol -1c)Heat of combustion of CO(g) -68 kcal mol -1d)Heat of formation of CO(g) is - 26 kcal mol -1Correct answer is option 'C,D'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which is/are correct statements):a)Heat of formation of CO2 is -68 kcal mol -1b)Heat of combustion of C(s) is -68 kcal mol -1c)Heat of combustion of CO(g) -68 kcal mol -1d)Heat of formation of CO(g) is - 26 kcal mol -1Correct answer is option 'C,D'. Can you explain this answer?.
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