Home
Class 12
CHEMISTRY
Given the following reactions with their...

Given the following reactions with their enthalpy changes, at `25^(@)C`,
`N_(2)(g)+2O_(2)(g) to 2NO_(2)(g),DeltaH=16.18 kcal`
`N_(2)(g)+2O_(2)(g) to N_(2)O_(4)(g),DeltaH=2.31 kcal`
Calculate the enthalpy of dimerisation of `NO_(2)` . Is `N_(2)O_(4)` apt to be stable with respect to `NO_(2)` at `25^(@)C` ?

Text Solution

Verified by Experts

The correct Answer is:
(-13.87 kcal, `N_(2)O_(4)` stable only at low temp. )
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    RC MUKHERJEE|Exercise Objective problems|58 Videos

  • CHEMICAL THERMODYNAMICS

    RC MUKHERJEE|Exercise Objective problems|58 Videos

  • CHEMICAL KINETICS

    RC MUKHERJEE|Exercise OBJECTIVE PROBLEMS |51 Videos

  • DILUTE SOLUTION AND COLLIGATIVE PROPERTIES

    RC MUKHERJEE|Exercise Objective problems|36 Videos

Similar Questions

Explore conceptually related problems

Given the following reaction : P : N_(2)(g)+2O_(2)(g)to2NO_(2)(g),DeltaH_(p)=16.18kcal Q : N_(2)(g)+2O_(2)(g)toN_(2)O_(4)(g),DeltaH_(Q)=2.31kcal Based on the above facts :

For the following reaction, the value of K change with N_(2)(g)+O_(2)(g) lt lt 2NO(g), DeltaH=+180 kJ mol^(-1)

N_(2(g)) + O_(2(g)) to 2N_((g)) - 42.0 kcal

Given N_(2)(g)+3H(g)=2NH_(3)(g),DeltaH^(@)=22 kcal. The standard enthalpy of formation of NH_(3) gas is

C(s)+O_(2)(g)toCO_(2)(g),DeltaH=-94 kcal 2CO(g)+O_(2)to2CO_(2),DeltaH=-135.2 kcal The heat of formation of CO(g) is

Calculate the enthalpy of vaporisation for water form the following: H_(2)(g) +1//2O_(2)(g) rarr H_(2)O(g),DeltaH =- 57.0 kcal H_(2)(g) +1//2O_(2)(g) rarr H_(2)O(l),DeltaH =- 68.3 kcal Also calculate the heat required to change 1g H_(2)O(l) to H_(2)O(g)

The following reaction are given : CH_(4(g))+2O_(2(g))toCO_(2(g))+2H_(2)O(g),DeltaH=-x C_((s))+O_(2(g))toCO_(2(g)),2H_(2(g)),DeltaH=-y H_(2(g))+(1)/(2)O_(2(g))toH_(2)O_((g)),2H_(2(g)),DeltaH=-z calculate the heat of formation of CH_(4) ?

RC MUKHERJEE-CHEMICAL THERMODYNAMICS-Problems
  1. Predict the direction in which Delta G^(0) for the equilibrium N(2)(...

    Text Solution

    |

  2. A heat pump is used to draw water from a well. The temperature of the ...

    Text Solution

    |

  3. Given the following reactions with their enthalpy changes, at 25^(@)C,...

    Text Solution

    |

  4. A system is changed from an initial state to a final state to a final ...

    Text Solution

    |

  5. Two moles of an ideal gas are held by a piston under 10 atm pressure a...

    Text Solution

    |

  6. Show that the differential dV of the molar volume of an ideal gas is a...

    Text Solution

    |

  7. Assume that the only change in volume is due to the production of hydr...

    Text Solution

    |

  8. A Carnot engine has an efficiency of 40% . If the temperature of the r...

    Text Solution

    |

  9. A Carnot engine, whose temperature of the source is 400K receives 200 ...

    Text Solution

    |

  10. One mole of an ideal gas at 22.4 litres is expanded isothermally and r...

    Text Solution

    |

  11. K(sp) of AgCl at 25^(@)C is 1.782 xx10^(-10). At 35^(@)C, K(sp) is 4.1...

    Text Solution

    |

  12. For the reaction C(s)+O(2)(g) to CO(2)(g) DeltaH^(0)=-393.51 kJ//"...

    Text Solution

    |

  13. The DeltaH^(0), DeltaG^(0) and DeltaS^(0) values for the reaction 2H...

    Text Solution

    |

  14. For each of the following processes, tell whether the entropy of the s...

    Text Solution

    |

  15. The heat of formation of ethane is -20.3 kcal. Calculate the bond ener...

    Text Solution

    |

  16. The heat of reaction of N(2)+3H(2) to 2NH(3) is -20 kcal. If the bond ...

    Text Solution

    |

  17. Calculate the heat of formation of acetone from the following data : ...

    Text Solution

    |

  18. Calculate the heat of formation of methyl alcohol (liquid) from the fo...

    Text Solution

    |

  19. Calculate the heat of the following gaseous reaction : CH(4)+4F(2) t...

    Text Solution

    |

  20. Estimate the heat of formation of gaseous isoprene (H(2)C=overset(CH...

    Text Solution

    |