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Enthalpies of solution of (BaCl2).(2H2O)...

Enthalpies of solution of `(BaCl_2).(2H_2O)` and `BaCl_2` are 8.8 and `(-20.6)Kj mol^(-1)` respectively calculate the heat of hydration of for conversion of `BaCl_2` to `(BaCl_2).(2H_2O)`

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Knowledge Check

  • The standard heat of formation of NO_2(g) and N_2O_4(g) are 8.0 and 2.0 kcal mol^-1 respectively. The heat of dimarization of NO_2 in kcal is:

    A
    10
    B
    -6
    C
    -12
    D
    -14

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    A
    29.8 kJ
    B
    -11.8 kJ
    C
    -20.6 kJ
    D
    -29.4 kJ

  • The enthalpies of formation of C_2H_2(g) and C_6H_6(g) at 298 K are 230 and 85 kJ/mol respectively. The enthalpy change for the reaction 3C_2H_2(g) to C_6H_6(g) is

    A
    605 kJ/mol
    B
    865 kJ/mol
    C
    -605 kJ/mol
    D
    -865 kJ/mol

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