Home
Class 12
CHEMISTRY
The enthalpy change when 1 g of water is...

The enthalpy change when 1 g of water is frozen at `0^@C` (`Delta_(fus) H^@=-1.435` kcal/mol) is __________ .

A

`-1.435 `cal/g

B

`-80.0`cal/g

C

80 cal/g

D

`-55.6`cal/g

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING|97 Videos

  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|25 Videos

  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|25 Videos

  • CHEMICAL KINETICS

    TARGET PUBLICATION|Exercise Evaluation test|13 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    TARGET PUBLICATION|Exercise 7|3 Videos

Similar Questions

Explore conceptually related problems

What is the enthalpy change when 1.0 g of water is frozen at 0^(@)C ? Delta_(fus) = H = 6.02 kJ "mol"^(-1) .

The enthalpy change when 1.00 g of water freezes at 0^(@)C and 1.00 atm is (DeltaH_("fusion")=1.435 k.cal//mol)

The enthalpy change of freezing of 1 mol of water at 5^(@)C to ice at -5^(@)C is (Given Delta_(fus)H=6kJ"mol"^(-1) at 0^(@)C , (C_(p)(H_(2)O,s)=36.8J"mol"^(-1)K^(-1))

The enthalpy change for the transition of liquid water to steam, Delta_(vap) " H=37.3 kJ " mol^-1 at 373 K. The entropy change for the process is __________ .

Calculate the entropy change for vaporization of 1mol of liquid water to stem at 100^(@)C , if Delta_(V)H = 40.8 kJ mol^(-1) .

The enthalpy change when 1mol of graphite is converted into diamond is known as the enthalpy of………….

TARGET PUBLICATION-CHEMICAL THERMODYNAMICS AND ENERGETICS -CRITICAL THINKING
  1. In which of the following thermochemical changes DeltaH^@ is always ne...

    Text Solution

    |

  2. For the transition C("(diamond)") rarr C("(graphite)"), DeltaH=-1.5 kJ...

    Text Solution

    |

  3. The enthalpy change when 1 g of water is frozen at 0^@C (Delta(fus) H^...

    Text Solution

    |

  4. Which of the following statements is INCORRECT about Born-Haber cycle?

    Text Solution

    |

  5. When 2mole of C(2)H(6) are completely burnt -3129kJ of heat is liberat...

    Text Solution

    |

  6. The enthalpy of formation of ammonia is -46.0 kJ mol^(-1). The enthalp...

    Text Solution

    |

  7. Values of heats of formation for SiO(2) and MgO are -48.4 and -34.7 kJ...

    Text Solution

    |

  8. In the combustion of 11 g of CO(2(g)), 100 kJ of heat is liberated. He...

    Text Solution

    |

  9. The heat of formations of CO((g)) and CO(2(g)) are -26.4 kcal and -94....

    Text Solution

    |

  10. In the combustion of 2.0 g of methane 25 kcal heat is liberated, heat ...

    Text Solution

    |

  11. The heat evolved in combustion of benzene is given by the following eq...

    Text Solution

    |

  12. Standard enthalpies of formation of O(3),CO(3),NH(3) and HI are 142.2,...

    Text Solution

    |

  13. The heat of atomisation of PH(3(g)) is 228kcal mol^(-1) and that of P(...

    Text Solution

    |

  14. Given the bond energirs N=N,H-H and N-H bonds are 945,436 and 391KJmol...

    Text Solution

    |

  15. Given: (i) S+O2 to SO2, Delta H=-298.2 kJ (ii) SO2 + 1/2 O2 to SO3...

    Text Solution

    |

  16. Calculate the enthalpy of hydrogenation of C2 H(4(g)), given that the...

    Text Solution

    |

  17. Heat of formation of H2 O((l)), CO(2(g)) "and" C2 H(4(g)) are -285.0, ...

    Text Solution

    |

  18. The combustion enthalpies of carbon, hydrogen and methane are -395.5 "...

    Text Solution

    |

  19. The standard molar heat of formation of ethane, CO2 "and" H2 O((l)) "a...

    Text Solution

    |

  20. The H2 O((g)) molecule dissociates as (i) H2 O((g)) to H((g)) + OH((...

    Text Solution

    |