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The energy change (ΔH) for the reaction CO(g) + (1)/(2)O2(g) → is? (ΔHi(CO) = -110.4...

Chemistry
JAMB 1985
The energy change (ΔH) for the reaction CO(g) + (1)/(2)O2(g) → is?

(ΔHi(CO) = -110.4 kJ mol-) (ΔHi(CO2) = -393 kJ mol-)
  • A. -503.7 kJ
  • B. +503.7kJ
  • C. -282.9 kJ
  • D. +282.9 kJ
  • E. +393.3 kJ
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Correct Answer: Option C
Explanation
The energy charge for the reaction is - (393 - HO.4) = -282.9 kJ
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Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Join your school's WhatsApp group
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
Join your school's WhatsApp group
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts