Home
Class 12
CHEMISTRY
Which of the following salts should caus...

Which of the following salts should cause maximum cooling when 1 mole of it is dissolved in the same volume of water?

A

`NaCl,eltaH^(@)=5.35kJmol^(-1)`

B

`KNO_(30,DeltaH^(@)=53.5kJmol^(-1)`

C

`KOH,DeltaH^(@)=-56.0kJmol^(-1)`

D

`HB r,DeltaH^(@)=-83.3kJmol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
(b) Dissolution of `KNO_(3)` is endothermic, hence heat is absorbed and cooing is observed.
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

When common salt is dissolved in water

When common salt is dissolved in water the,

Which of the following gives the maximum number of ions per mole when dissolved in water ?

Which one of the following salts when dissolves in water hydrolyse?

Which one of the following salts will produce an alkaline solution while dissolving in water ?

DISHA-THERMODYNAMICS-CHEMISTRY
  1. Standard entropy of X(2),Y(2) and X(3),Y(3) are 60, 40 and 50 JK^(-1)m...

    Text Solution

    |

  2. A heat engine absorbs heat Q(1) at temperature T(1) and heat Q(2) at t...

    Text Solution

    |

  3. The standard enthalpies of formation of CO(2)(g),H(2)O(l) and glucose...

    Text Solution

    |

  4. Using the data provided, calculate the mutliple bond energy (kJ mol^(-...

    Text Solution

    |

  5. The enthalpy of neutralisation of NH(4)OH and CH(3)COOH is -10.5 kcal ...

    Text Solution

    |

  6. The enthalpy change of formation of CO(2)(g) is -393 kJ mol^(-1) and t...

    Text Solution

    |

  7. The lattice energy of solid NaCl is 180 kcal mol^(-1) and enthaly of s...

    Text Solution

    |

  8. A certain reaction is non spontaneous at 298K. The entropy change duri...

    Text Solution

    |

  9. Which of the following statement is incorrect?

    Text Solution

    |

  10. The DeltaH at 358 K for the reaction Fe(2)O(3)(g)+3H(2)(g) to 2Fe(s)...

    Text Solution

    |

  11. The enthalpy of a neutralisation of a weak acid in 1 M solution with a...

    Text Solution

    |

  12. DeltaH(f)^(@) of NF(3) is -113 kJ mol^(-1) and N-F bond energy is 273....

    Text Solution

    |

  13. Consider the following process? DeltaH(kJ//mol) 1//2Ato" "+150 ...

    Text Solution

    |

  14. For an isothermal reversible expansion process, the value of q can be ...

    Text Solution

    |

  15. From the following data DeltaH of the following reactions C(s)+(1)/(...

    Text Solution

    |

  16. The heats of neutralisation of CH(3)COOH,HCOOH,HCN and H(2)S are -13.2...

    Text Solution

    |

  17. Which of the following salts should cause maximum cooling when 1 mole ...

    Text Solution

    |

  18. Read the following statements carefully and choose the correct option ...

    Text Solution

    |

  19. Consider the following reaction occurring in an automobile 2C(8)H(18)(...

    Text Solution

    |

  20. Choose the eraction with negative DeltaS value.

    Text Solution

    |