| ⇦ | 
| ⇨ |
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 Friedel-Craft’s alkylation, besides AlCl₃ the other reactants are
- The equation ΔG = ΔH – TΔS is for
- Which among the following is strong acid
- How many moles of iodine are liberated when 1 mole of potassium dichromate
- Calculate the energy in joule corresponding to light of wavelength 45nm
Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In Friedel-Craft’s alkylation, besides AlCl₃ the other reactants are
- The equation ΔG = ΔH – TΔS is for
- Which among the following is strong acid
- How many moles of iodine are liberated when 1 mole of potassium dichromate
- Calculate the energy in joule corresponding to light of wavelength 45nm
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