Home
Class 11
CHEMISTRY
Whenever an acid is neutralised by a bas...

Whenever an acid is neutralised by a base the net reaction is `H^(+)(aq)+OH^(-)(aq)rarrH_2O(l)+57.1 KJ` calculate the heat evolved in the following experiment:
0.25 mol of HCl solution is neutralised by 0.25 mol of NaOH solution amount of heat liberated for the reaction is

A

(+57.1)KJ

B

(-57.1)KJ

C

(+14.3)KJ

D

(-14.3)KJ

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER (GASES & LIQUIDS)

    PATHFINDER|Exercise QUESTION BANK|280 Videos

Similar Questions

Explore conceptually related problems

Find the volume (in mL) of 0.2 (N) NaOH solution required to neutralise 25 mL of 0.2(N) H_(2)SO_(4) solution.

25 mL, 0.2 M Ca(OH)_2 is neutralised by 10 mL of 1 M HCl. then pH of resulting solution is-

Calculate the amount of heat evolved when 500 cm^3 of 0.1 M HCl is mixed with 200 cm^3 of 0.2 M NaOH.

The heat of neutralisation of a strong base and a strong acid is 13.7 kcal. The heat released when 0.6 mol HCl solution is added to 0.25 mol of NaOH is-

What should be the amount of heat released when an aqueous solution containing 0.5 mole of NHO_3 is mixed with 0.3 mole of OH^-1 ? (enthalpy of neutralisation is -57.1 kJ)

Calculate the concentrations of H_(3)O^(+) and OH^(-) ions in the solution with the following pH values at 25^(@)C (1) pH=5.0 (2) pH=12.

Heat of neutralization for the reaction, is 57.1kJ mol^(−1) . The heat released when 0.25 mole of NaOH is titrated against 0.25 mole HCl will be: NaOH+HCl→NaCl+H_2O

At 1 atm and 298K DeltaH^(0) value of the reaction 2H_(2)(g)+O_(2)(g)to2H_(2)O(l) is -572 kJ. Calculate the change in entropy of the system and surroundings for this reaction. Is this reaction spontaneous at that temperature and pressure? Given: Standard molar entropies of H_(2)(g),O_(2)(g)&H_(2)O(l) at 298K are 130.6, 205.0 and 69.90 J*K^(-1)*mol^(-1) respectively.

1 mol of H_(2)O(l) is formed when 1 mol of H^(+) ions and 1 mol of OH^(-) ions react together is aqueous solution. Does this reaction represent the formation reaction of water?

1L of a (N/2) HCl solution was heated in a beaker and it was observed that when the volume of solution got reduced to 600 mL, 3.25 g of HCl was lost. Calculate the normally of the resulting solution.

PATHFINDER-THERMODYNAMICS-QUESTION BANK
  1. Four grams of helium gas is expanded from 1 atm to one tenth of its or...

    Text Solution

    |

  2. The enthalpy of neutralisation of HCl by NaOH is -57.1 KJ and that of ...

    Text Solution

    |

  3. Whenever an acid is neutralised by a base the net reaction is H^(+)(aq...

    Text Solution

    |

  4. The bond dissociation energies of two O-H bond in water are: H2O(g)rar...

    Text Solution

    |

  5. System performed pressure volume work when in between system and surro...

    Text Solution

    |

  6. Change in internal energy of a system is

    Text Solution

    |

  7. Which of the following statement is correct?

    Text Solution

    |

  8. For endothermic reaction which is correct?

    Text Solution

    |

  9. Which of the following element standard enthalpy is not to be equal to...

    Text Solution

    |

  10. When the bond of CH4(g) is dissociated then

    Text Solution

    |

  11. When a liquid substance is converted to solid substance its entropy

    Text Solution

    |

  12. When ozone is converted to oxygen then entropy

    Text Solution

    |

  13. A reaction occurs spontaneously if

    Text Solution

    |

  14. Assume the reaction is carried out in an open system for which reactio...

    Text Solution

    |

  15. Which of the following reaction does not define standard enthalpy of f...

    Text Solution

    |

  16. Which of the following is correct ?

    Text Solution

    |

  17. Write true or false of the following statements: Molar mass is an ext...

    Text Solution

    |

  18. Write true or false of the following statements: Degree of randomness...

    Text Solution

    |

  19. Write true or false of the following statements: The internal energy ...

    Text Solution

    |

  20. Write true or false of the following statements: No work is done duri...

    Text Solution

    |