Home
Class 11
CHEMISTRY
Calculate the enthalpy change on freezin...

Calculate the enthalpy change on freezing of `1.0 mol` of water at `10.0^@C` to ice at `-10.0^@C` . `Delta_( fus) H=6.03 kJ mol^(-1)` at `0^@C` .
`C_p[H_2 O(t)]=75.3 J mol^(-1) K^(-1)`
`C_p[H_2 O(s)]=36.8 J mol^(-1) K^(-1)`

Answer

Step by step text solution for Calculate the enthalpy change on freezing of 1.0 mol of water at 10.0^@C to ice at -10.0^@C . Delta_( fus) H=6.03 kJ mol^(-1) at 0^@C . C_p[H_2 O(t)]=75.3 J mol^(-1) K^(-1) C_p[H_2 O(s)]=36.8 J mol^(-1) K^(-1) by CHEMISTRY experts to help you in doubts & scoring excellent marks in Class 11 exams.

Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • THE s- BLOCK ELEMENTS

    V PUBLICATION|Exercise QUESTION BANK|110 Videos

Similar Questions

Explore conceptually related problems

Calculate the entropy change in surrounding when 1.0 mol of H_2O(l) is formed under standard conditions. Given Delta_fH^o = -286 kJ mol^-1.

Calculate the enthalpy of combustion of methane at 25 ^(@)C and 1 atm pressure. The standard enthalpy of formation of CH _(4) =- 74.8 kJ mol ^(-1) , CO _(2) = - 393.5 kJ mol ^(-1) and H _(2) O =- 285.9 kJ mol ^(-1).

Knowledge Check

  • The enthalpy change in freezing 1 g of water (Delta _fusion H = 6 .0 kJ mol^(-1) ) will be:- -6000.0 J , -333 J , 333.33J , 60.0 J

    A
    -6000.0 J'
    B
    - 333 J'
    C
    333.33J' '
    D
    60.0 J'
  • Calculate the equilibrium constant for a reaction at 400 K given that DeltaH^(@) = 308.3kJ mol^(-1) and Delta S = 0. 857 kJ K ^(-1) mol ^(-1) at 400 K.

    A
    `3.1959 xx 10 ^(4)`
    B
    `6.35 xx 10 ^(4)`
    C
    `9.25 xx 10 ^(4)`
    D
    `8.35 xx 10 ^(4)`
  • Similar Questions

    Explore conceptually related problems

    Calculate w and Delta U for the conversion of 1 mole of water at 100 ^(@)C to steam at 1 atm pressure. Heat of vaporisation of water at 100^(@)C is 50670 J mol ^(-1).

    Calculate the free energy change on dissolving one mole of sodium chloride at 25^(@)C. Lattice energy = 777.8 kJ mol^(-1) hydration energy =-774 kJ mol^(-1) of NaCl, Delta S at 25 ^(@)C = 0.043 kJ mol ^(-1) K ^(-1).

    Calculate the free energy change on dissolving one mole of sodium chloride at 25 ^(@) C. Lattice energy =777.8 kJ mol ^(-1), hydration energy =- 774kJ mol ^(-1) of NaCl, Delta S at 25 ^(@)X = 0.043 kJ mol ^(-1) K ^(-1).

    Calculate the equilibrium constant for a reaction at 400 K given that Delta H ^(@) = 308. 3 kJ mol ^(-1) and Delta S = 0. 857 kJ K ^(-1) mol ^(-1) at 400 K.

    Calculate the enthalpy of combustion of methane at 25^(@)C ạnd 1 åtm pressure. The standard enthalpy of formation of CH _(4) = - 74.8 kJ mol ^(-1), CO _(2) =- 393.5 kJ mol ^(-1) and H _(2)O =- 285.9 kJ mol ^(-1)

    The vapour pressure of water at 100^(@)C is 760 mm . What is the vapour pressure at 90^(@)C if Delta_("vap") H of water is 41.25 kJ mol^(-1) ?