Home
Class 11
CHEMISTRY
The enthalpy change DeltaH for the neutr...

The enthalpy change `DeltaH` for the neutralisation fo `1M HCI` by caustic potash in dilute solution at `298 K` is

A

`68 kJ`

B

`65 kJ`

C

`57.3kJ`

D

`50 kJ`

Text Solution

AI Generated Solution

To determine the enthalpy change (ΔH) for the neutralization of 1M HCl by caustic potash (KOH) in dilute solution at 298 K, we can follow these steps: ### Step 1: Understand the Reaction The neutralization reaction between hydrochloric acid (HCl) and potassium hydroxide (KOH) can be represented as: \[ \text{HCl (aq)} + \text{KOH (aq)} \rightarrow \text{KCl (aq)} + \text{H}_2\text{O (l)} \] ### Step 2: Identify the Type of Acid and Base Both HCl and KOH are strong acid and strong base, respectively. This means they will completely dissociate in solution. ...
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    CENGAGE CHEMISTRY ENGLISH|Exercise Exercise|1 Videos

  • THERMODYNAMICS

    CENGAGE CHEMISTRY ENGLISH|Exercise Ex 6.1|26 Videos

  • STOICHIOMETRY

    CENGAGE CHEMISTRY ENGLISH|Exercise Archives Subjective|33 Videos

Similar Questions

Explore conceptually related problems

Reaction stoichiometry, kinetics and thermodynamics ltbgt Nitrosyl chloride (NOCl) , is a yellow gas that is most commonly encountered as a decomposition product of aqua regia. It is toxic and irritating to the lungs. On heating NOCl decomposes as 2NOClrarr2NO+Cl_(2) . The enthalpy change (DeltaH) for the formation of 1 mole of Cl_(2) by the decomposition of NOCl is 75.3KJ between 100.K "to" 600K . The standard entropies (S^(@)_(298K)) of different species are as given below: {:("Substance",NOCl,NO,Cl_(2)),(S_(298K)^(@),264,211,223):} Calculate the temperature at which K_(p) will be double the value at 298K .

Reaction stoichiometry, kinetics and thermodynamics that of Nitrosyl chloride (NOCl) , is a yellow gas that is most commonly encountered as a decomposition product of aqua regia. It is toxic and irritating to the lungs. On heating NOCl decomposes as 2NOClrarr2NO+Cl_(2) . The enthalpy change (DeltaH) for the formation of 1 mole of Cl_(2) by the decomposition of NOCl is 75.3KJ between 100.K "to" 600K . The standard entropies (S^(@)_(298K)) of different species are as given below: {:("Substance",NOCl,NO,Cl_(2)),(S_(298K)^(@),264,211,223):} Calculate G of the above decomposition reaction at 298K .

The enthalpy change (DeltaH) for the reaction N_2(g) + 3H_2 (g) to 2NH_3(g) is -92.38 kJ at 298 K. What is DeltaU at 298 K ? (R = 8.314 j K^(-1) mol^(-1))

Enthalpy of neutralzation is defined as the enthalpy change when 1 mole of acid /base is completely neutralized by base // acid in dilute solution . For Strong acid and strong base neutralization net chemical change is H^(+) (aq)+OH^(-)(aq)to H_(2)O(l) Delta_(r)H^(@)=-55.84KJ//mol DeltaH_("ionization")^(@) of aqueous solution of strong acid and strong base is zero . when a dilute solution of weak acid or base is neutralized, the enthalpy of neutralization is somewhat less because of the absorption of heat in the ionzation of the because of the absorotion of heat in the ionization of the weak acid or base ,for weak acid /base DeltaH_("neutrlzation")^(@)=DeltaH_("ionization")^(@)+ Delta _(r)H^(@)(H^(+)+OH^(-)to H_(2)O) What is DeltaH^(@) for complate neutralization of strong diacidic base A(OH)_(2)by HNO_(3) ?

The enthalpy change (Delta H) for the reaction N_(2) (g)+3H_(2)(g) rarr 2NH_(3)(g) is -92.38 kJ at 298 K . What is Delta U at 298 K ?

The enthalpy change for a given reaction at 298 K is -x cal mol^(-1) . If the reaction occurs spontaneously at 298 K , the entropy change at that temperature

The enthalpy change (DeltaH) for the reaction, N_(2(g))+3H_(2(g)) rarr 2NH_(3g) is -92.38kJ at 298K What is DeltaU at 298K ?

The enthalpy change for first proton neutralisation of H_(2)S is -37.1kJ mol^(-1) . What is the enthalpy change for first ionisation of H_(2)S.' in KJ/mol.

(a) Define molar conductivity of a solution and explain how molar conductivity changes with change in concentration of solution for a weak and a strong electrolyte. (b) The resistance of conductivity cell containing 0.001 M KCl solution at 298 K is 1500 ohm . What is the cell constant if the conductivity of 0.001 MKCl solution at 298 K is 0.146 xx 10^(-3) S cm^(-1)

The enthalpy change ( DeltaH ) of the reaction at 298 K C_2H_5OH(l) + 3O_2(g) to 2CO_2(g) + 3H_2O (l) is found to be -326.7 kcal. Calculate DeltaE for the given reaction.

CENGAGE CHEMISTRY ENGLISH-THERMODYNAMICS-Archives (Subjective)
  1. The enthalpy change DeltaH for the neutralisation fo 1M HCI by caustic...

    Text Solution

    |

  2. The enthalpies for the following reactions (DeltaH^(Theta)) at 25^(@)C...

    Text Solution

    |

  3. The standared enthalpies of formation at 298K for C C1(g), H(2)O(g), C...

    Text Solution

    |

  4. Given that: i. C(s) + O(2)(g) rarr CO(2)(g) , DeltaH =- 94.05 kcal ...

    Text Solution

    |

  5. The following statement is true only under some specific conditions. W...

    Text Solution

    |

  6. The bond dissociation energies of gaseous H(2),Cl(2), and HCl are 100,...

    Text Solution

    |

  7. The standard molar heat of formation of ethane, carbon dioxide and wat...

    Text Solution

    |

  8. An intimate mixture of ferric oxide and aluminium is used as solid fue...

    Text Solution

    |

  9. The enthalpy of combustion of H(2), cyclohexene (C(6)H(10)) and cycloh...

    Text Solution

    |

  10. CsOH +HCI rarr CsCI +H(2)O, DeltaH =- 13.4 kcal mol^(-1)……….(i) CsOH...

    Text Solution

    |

  11. Determine enthalpy change for, C(3)H(8(g))+H(2(g))rarr C(2)H(6(g))+C...

    Text Solution

    |

  12. Compute the heat of formation of liquid methyl alcohol in kilojoule pe...

    Text Solution

    |

  13. From the following data, calculate the enthalpy change for the combust...

    Text Solution

    |

  14. The standard heat of formation values of SF(6)(g), S(g), and F(g) are ...

    Text Solution

    |

  15. Show that the reaction CO(g) +(1//2)O(2)(g) rarr CO(2)(g) at 300K ...

    Text Solution

    |

  16. A sample of argon gas at 1atm pressure and 27^(@)C expands reversibly ...

    Text Solution

    |

  17. Determine the enthalpy of formation of B(2)H(6)(g) in kJ/mol of the fo...

    Text Solution

    |

  18. The standart potential of the following cell is 0.23 at 15^(@)C and 0....

    Text Solution

    |

  19. When 1pentyne (A) is treated with 4N alcoholic KOH at 175^(@)C, it is ...

    Text Solution

    |

  20. Two moles of a perfect gas undergo the following processes: a. A rev...

    Text Solution

    |

  21. C(v) values of He is always (3R)/(2) but C(v) values of H(2) is (3R)/(...

    Text Solution

    |