| ⇦ | 
| ⇨ |
The values of heat of formation of SO₂ and SO₃ are -298.2 kJ and -98.2 kJ. The heat of formation of this reaction will be SO₂ + (1/2)O₂ → SO₃
Options
(a) 200 kJ
(b) -356.2 kJ
(c) -200 kJ
(d) -396.2 kJ
Correct Answer:
200 kJ
Explanation:
Values of heat formation of SO₂ = -298.2 kJ and that of SO₃ = -98.2 kJ.
Therefore S(s) + O₂(g) → SO₂(g) , ΔH = -298.2 kJ ..(i)
and S(s) + (3/2)O₂(g) → SO₃(g), ΔH = -98.2 kJ ..(ii)
Subtracting equation, (i) from (ii), we get,
SO₂ + 1/2O₂ → SO₃. ΔH = -98.2 – (-298.2) = 200 kJ.
Related Questions: - 10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded
- Which one of the following method, is commonly used method for destruction of
- When 2-bromobutane reacts with alcoholic KOH, the reaction is called
- which of the following oxy acids of phosphorus is a reducing agent and monobasic
- The main reason that SiCl₄ is easily hydrolysed as compared to CCl₄ is that
Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- 10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded
- Which one of the following method, is commonly used method for destruction of
- When 2-bromobutane reacts with alcoholic KOH, the reaction is called
- which of the following oxy acids of phosphorus is a reducing agent and monobasic
- The main reason that SiCl₄ is easily hydrolysed as compared to CCl₄ is that
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