⇦ | ⇨ |
The heat of combustion of carbon to CO₂ is -393.5 kJ/mol. The heat released upon formation of 35.2 g of CO₂ from carbon and oxygen gas is
Options
(a) 315 kJ
(b) -630 kJ
(c) -3.15 kJ
(d) -315 kJ
Correct Answer:
315 kJ
Explanation:
Given: C + O₂ → CO₂, ΔH = – 393.5 kJ/mol. Amount of heat realeased on formation of 44 g CO₂ = 393.5 KJ. Amount of heat released on formation of 35.2 g CO₂ = 393.5 / 44 * 35.2 = 314.8 ≈ 315 kJ.
Related Questions: - What is formed when nitrobenzene is reduced using zinc and alkali
- K₄[Fe(CN)₆] is a
- What is formed when hydrogen atom of the -OH group in phenol is replaced by
- Halo alkane in the presence of alcoholic KOH undergoes
- 300 mL of a gas at 27⁰C is cooled to -3⁰C at constant pressure
Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- What is formed when nitrobenzene is reduced using zinc and alkali
- K₄[Fe(CN)₆] is a
- What is formed when hydrogen atom of the -OH group in phenol is replaced by
- Halo alkane in the presence of alcoholic KOH undergoes
- 300 mL of a gas at 27⁰C is cooled to -3⁰C at constant pressure
Topics: Thermodynamics (179)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply