The absolute enthalpy of neutralisation of the reaction `MgO(s) + 2HCl(aq) to MgCl_(2)(aq) + H_(2)O(l)` will be

Question

The absolute enthalpy of neutralisation of the reaction `MgO(s) + 2HCl(aq) to MgCl_(2)(aq) + H_(2)O(l)` will be

The absolute enthalpy of neutralisation of the reaction
`MgO(s) + 2HCl(aq) to MgCl_(2)(aq) + H_(2)O(l)` will be
A. less than -57.33 KJ `"mol"^(-1)`
B. `-57.33 KJ "mol"^(-1)`
C. greater than `-57.33 KJ "mol"^(-1)`
D. 57.33 KJ `"mol"^(-1)`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

The reaction of hydrogen and iodine monochlride is given as L `H_(2)(g) + 2ICI(g) to 2HCl(g) + I_(2)(g)` This reaction is of first order with respect

2 Answers 4 Views

Free energies of formation `(Delta_(f)G)` of MgO(s) and Co(g) at 1273 K and 2273 K are given below : `Delta_(f)G^(@) (MgO(s))=-941 kJ//"mol at" 1273 K

2 Answers 4 Views

Calculate `Delta G` (in kJ) for the reaction at 300 K, `H_(2)(g)+Cl_(2)(g) rarr 2HCl (g)` Given at 300 K, `BE_(H-H) = 435 kJ mol^(-1), BE_(Cl-Cl) = 24

2 Answers 6 Views

`DeltaH_(f)^(@)` of water is -285.5 KJ `"mol"^(-1)`. If enthalpy of neutralisation of monoacid strong base is -57.3 KJ `"mol"^(-1) , DeltaH_(f)^(@)` o

2 Answers 5 Views

From the following data : Enthalpy of formation of `CH_(3)CN`=87.86 kJ/mol Enthalpy of formation of `C_(2)H_(6)=-` 83.68 kJ/mol Enthalpy of sublimatio

2 Answers 4 Views

Consider the reaction at 300 K `H_(2)(g)+Cl_(2)(g) to 2HCl(g)" "DeltaH = - 185 kJ//mol` Calculate `DeltaU` if 3 mole of `H_(2)` completely react with

2 Answers 5 Views

It is known that entropy of neutralisation of a strong acid and strong base is -13.68kcal/mol.If enthalpy of neutralisation of `N_2H_4`(hydrazine) wit

2 Answers 5 Views

Enthalpy of neutralisation of the reaction between `CH_(3)COOH(aq)` and `NaOH(aq)` is `-13.2kcal Eq^(-1)` and that of the reaction between `H_(2)SO_(4

2 Answers 5 Views

The reaction, `SOCl_(2)+H_(2)OtoSO_(2)+2HCl`, is endothermica by 49.4 kJ and exergonic by 50.8 kJ. What is ht efactor that makes the reaction to be sp

2 Answers 5 Views

One mole of anhydrous `MgCl_(2)` dissolves in water and librates `25 cal//mol` of heat. `Delta H_("hydration")` of `MgCl_(2)=30 cal//mol`. Heat of dis

2 Answers 7 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
Heat of neutralisation of strong acid and strong base is -57.33 KJ. MgO is weak base while HCl is strong acid. So the heat of neutralisation of MgO and HCl is lower than `-57.33 KJ ` because MgO requires some heat for ionisation , therefore the net released amount of heat is decreased.

4 views Answered 2023-02-05 15:29