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NEET UG CHEMISTRY MCQ: THERMODYNAMICS

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Application +4 | -1
Heat of formation of COCO and CO2C{O_2} are -26.4, -94.0 Kcal/mole respectively. What is the heat of combustion of CO in K cals?
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Correct option: C
−67.6- 67.6
Option C (−67.6- 67.6) is correct because the heat of combustion of CO is calculated using the heats of formation of CO and CO2 and applying Hess's Law.

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