| ⇦ | 
| ⇨ |
The absolute enthalpy of neutralisation of the reaction
MgO(s) + 2HCl(aq) → MgCl₂(aq) + H₂O(l) will be
Options
(a) -57.33 kJ mol⁻¹
(b) greater then -57.33 kJ mol⁻¹
(c) less then -57.33 kJ mol⁻¹
(d) 57.33 kJ mol⁻¹
Correct Answer:
less then -57.33 kJ mol⁻¹
Explanation:
MgO is the oxide of weak base and we know that heat of neutralisation of 1 eq. of strong acid with strong base is -57.33 kJ/mol.
⇒ With weak base some heat is absorbed in dissociation of weak base.
⇒ Heat of neutralisation of weak base with strong acid will be – 57.33 kJ/mol.
Related Questions: - In N₂ + 3H₂ → 2NH₃ reversible reaction ,increases in pressure will favour
- In graphite C atom is in …state
- In which one of the following molecules the central atom does not have sp³
- If 1 mL of water contains 20 drops then number of molecules in a drop of water
- What is formed when formaldehyde reacts with KOH
Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In N₂ + 3H₂ → 2NH₃ reversible reaction ,increases in pressure will favour
- In graphite C atom is in …state
- In which one of the following molecules the central atom does not have sp³
- If 1 mL of water contains 20 drops then number of molecules in a drop of water
- What is formed when formaldehyde reacts with KOH
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