Home
Class 12
CHEMISTRY
Given : (i) C("graphite") + O(2)(g) ra...

Given :
(i) `C("graphite") + O_(2)(g) rarr CO(g) ,Delta_(r )H^(@) = xkJ mol^(-1)`
(ii) `C("graphite") + 1/2 O_(2)(g) rarr CO_(2)(g), Delta_(r )H^(@) = ykJ mol^(-1)`
(iii) `CO(g) + 1/2 O_(2)(g) rarr CO_(2)(g) , Delta_(r )H = z kJ mol^(-1)`
Based on the above thermochemical equations, find out which one of the following algebraic relationships is correct ?

A

` x = y - z`

B

`z = x + y`

C

`x = y + z`

D

`y = 2z - x`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (Section -D) Assertion-Reason Type Questions|15 Videos

  • THERMODYNAMICS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (Section - B) Objective Type Questions|35 Videos

  • THE SOLID STATE

    AAKASH INSTITUTE|Exercise Assignment (SECTION - D) (ASSERTION-REASON TYPE QUESTION)|20 Videos

Similar Questions

Explore conceptually related problems

Given : (i) C("graphite") +O_2(g)toCO_2(g)DeltarH^(Theta)="x kj "mol^(-1) (ii) C("graphite") +(1)/(2)O_2(g)toCO_2(g),DeltarH^(Theta)="y kj "mol^(-1) (iii) CO(g) +(1)/(2)O_2(g) toCO_2(g),DeltarH^(theta)="zkj" mol^(-1) Based on the above thermochemical equations, find out which one of the following algebraic relationships is correct ?

Comment on the thermodynamic stability of NO(g) , given 1/2N_(2)(g)+1/2O_(2)(g)rarr NO(g), Delta_(r)H^(Θ)=90 kJ mol^(-1) NO(g)+1/2O_(2)(g) rarr NO_(2)(g), Delta_(r)H^(Θ)=-74 kJ mol^(-1)

AAKASH INSTITUTE-THERMODYNAMICS-ASSIGNMENT (Section - C) Previous Years Questions
  1. The absolute enthalpy of neutralization of the reaction, MgO(s)+2HCl...

    Text Solution

    |

  2. Which reaction, with the following values of Delta H, Delta S, at 400 ...

    Text Solution

    |

  3. Given : (i) C("graphite") + O(2)(g) rarr CO(g) ,Delta(r )H^(@) = xkJ...

    Text Solution

    |

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

    Text Solution

    |

  5. When 5 litres of a gas mixture of methane and propane is perfectly com...

    Text Solution

    |

  6. The enthalpy of formation for C(2)H(4)(g), CO(2)(g) and H(2)O(l) at 25...

    Text Solution

    |

  7. For a reaction to occur spontaneously

    Text Solution

    |

  8. Given that C + O(2) rightarrow CO(2), Delta H^(@) = - x k J 2CO +O...

    Text Solution

    |

  9. Identify the correct statement regarding entropy

    Text Solution

    |

  10. One mole of an ideal gas at 250 K is expanded isothermally from an ini...

    Text Solution

    |

  11. Given : S((s))+(3)/(2)O(2(g))rarrSO(3(g)+2X Kcal SO(2(s))+(1)/(2)O(2...

    Text Solution

    |

  12. At 37 ^(@)C latent heat of fusion of a compound is 3930 J/mol. Entropy...

    Text Solution

    |

  13. For the reaction C2H(5)OH(l) + 3 O(2)(g) rightarrow 2CO(2)(g) + 3 H(2)...

    Text Solution

    |

  14. Change in enthalpy for reaction 2H(2)O(2)(l)rarr2H(2)O(l)+O(2)(g) if...

    Text Solution

    |

  15. When 1 mol of gas is heated at constant volume temperature is raised f...

    Text Solution

    |

  16. Enthalpy of CH(4) + 1/2 O(2) rightarrow CH(3)OH is negative. If enthal...

    Text Solution

    |

  17. The unit of entropy is

    Text Solution

    |

  18. In a closed insulated container, a liquid is stirred with a paddle to ...

    Text Solution

    |

  19. Two moles of ideal gas at 27^(@)C temperature is expanded reversibly f...

    Text Solution

    |

  20. Heat of combustion DeltaH^(@) for C(s),H(2)(g) and CH(4)(g) are 94, -6...

    Text Solution

    |