Home
Class 12
CHEMISTRY
The molar heat capacity of water at cons...

The molar heat capacity of water at constant pressure `P` , is `75JK^(-1)mol^(-1)` . When `1.0KJ` of heat is supplied to `100g` of water which is free to expand, the increase in temperature of water is

A

6.6K

B

1.2K

C

2.4K

D

4.8K

Text Solution

Verified by Experts

The correct Answer is:
C
Given `C_(p)=75JK^(-1)"mol"^(-1)`
`n=100/8` moles `Q=1000J, DeltaT=?`
`Q=nC_(P)DeltaT=DeltaT=(1000xx18)/(100xx75)=2.4K`
Promotional Banner

Topper's Solved these Questions

  • THE SOLID STATE

    DISHA PUBLICATION|Exercise EXERCISE -2 : CONCEPT APPLICATOR|30 Videos

Similar Questions

Explore conceptually related problems

The molar heat capacity of water at constant pressure, C_(P) , is 75 JK^(-1) mol^(-1) . When 1.0 kJ of heat is supplied to 100 g of water which is free to expand, the increase in temperature of water is

The molar heat capacity of water at constant pressure P is 75 J K ^(-1) mol ^(-1) . When 1.0 kJ of heat is supplied to 1000 g of water , which is free to expand, the increase in temperature of water is

The molar heat capacity of water at constant pressure P is 60 JK^(-1) mol^(-1) . When 1.0kJ of heat is supplied to 100g of water, which is free to expand, find the increase in temperature of water.

The molar heat capacity of water at constant pressure, C, is 75 JK^(-1) mol^(-1) . When 1.0 kJ of heat is supplied to 100 g water which is free to expand, the increase in temperature of water is :

The molar heat capacity of water at constant pressure, C_(p) is "75 J K"^(-1)"mol"^(-1) . When 10 kJ of heat is supplied to 1 kg water which is free to expand, the increase in temperature of water is

The molar heat capacity of water in equilibruim with ice at constant pressure is

DISHA PUBLICATION-THERMODYNAMICS-Exercise
  1. For a reversible adiabatic ideal gas expansion (dp)/(p) is equal to

    Text Solution

    |

  2. If DeltaH is the change in enthylpy and DeltaU, the change in internal...

    Text Solution

    |

  3. The molar heat capacity of water at constant pressure P , is 75JK^(-1)...

    Text Solution

    |

  4. The enthalpy change for a reaction does not depend upon:

    Text Solution

    |

  5. Consider the reaction, N(2) + 3H(2) rarr 2NH(3) carried out at consta...

    Text Solution

    |

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

    Text Solution

    |

  7. The heat of combustion of carbon to CO(2)is-395.5kJ//mol.The heat rele...

    Text Solution

    |

  8. The DeltaH(f)^(@) for CO(2)(g), CO(g) and H(2)O(g) are -395.5,-110.5 a...

    Text Solution

    |

  9. The enthalpies of formation of Al(2)O(3) and Cr(2)O(3) are -1596KJ and...

    Text Solution

    |

  10. Equal volumes of molar hydrochloric acid and sulphuric acid are neutra...

    Text Solution

    |

  11. The reaction A to B , DeltaH=+24 kJ//"mole". For the reaction B to C, ...

    Text Solution

    |

  12. Energy required to dissociate 4g of gaseous hydrogen into free gaseous...

    Text Solution

    |

  13. Calculate enthalpy change for the change 8S(g)toS(8)(g), given that ...

    Text Solution

    |

  14. An ideal gas is allowed to expand both reversibly and irreversibly in ...

    Text Solution

    |

  15. On the basic of thermochemical equations (I),(II)and (III), Find out w...

    Text Solution

    |

  16. Following reaction occurring in an automobile 2C(8)H(18)(g)+25O(2)(g) ...

    Text Solution

    |

  17. Enthalpy of CH(4)+(1)/(2)O(2)rarrCH(3)OH is negative. If enthalpy of...

    Text Solution

    |

  18. If the end energies of H-H, Br-Br and H-Br are 433, 192 and 364 kJ mol...

    Text Solution

    |

  19. Calculate the standard enthalpy change (in kJ "mol"^(-1)) for the reac...

    Text Solution

    |

  20. Four grams of graphite is burnt in a bomb calorimeter of heat capacity...

    Text Solution

    |