Home
Class 12
CHEMISTRY
(Delta H - Delta U) for the formation of...

`(Delta H - Delta U)` for the formation of carbon monoxide `(CO)` from its elements at `298K` is
`(R = 8.314 K^(-1)mol^(-1))`

A

`-1238.78J" "mol^(-1)`

B

`1238.78J" "mol^(-1)`

C

`-2477.57J" "mol^(-1)`

D

`2477.57J" "mol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`C(s)+(1)/(2)O_(2)(g)toCO(g)" "Deltan_(g)=1-(1)/(2)=(1)/(2)`
`DeltaH-DeltaU=DeltanRT`
`=(1)/(2)x8.314xx298=1238.786JJ" "mol^(-1)`
Promotional Banner

Topper's Solved these Questions

  • Chemical Thermodynamics and Thermochemistry

    OP TANDON|Exercise Set 2|18 Videos

  • Chemical Thermodynamics and Thermochemistry

    OP TANDON|Exercise Objective Question Level B|56 Videos

  • Chemical Thermodynamics and Thermochemistry

    OP TANDON|Exercise Practice problems|81 Videos

  • CHEMICAL KINETICS

    OP TANDON|Exercise LINKED COMPRESHENSION TYPE QUESTIONS ( SECTION-VI)|4 Videos

  • CLASSIFICATION AND NOMENCLATURE OF ORGANIC COMPOUNDS

    OP TANDON|Exercise INTEGER|2 Videos

Similar Questions

Explore conceptually related problems

(DeltaH-DeltaU) for the formation of carbon monoxide (CO) from its elements at 298 K is (R=8.314kJ^(-1)" "mol^(-1))

The difference between between Delta H and Delta U for the formation of C_6H_(12)O_6( S) from its elements at 27^@ C is __ cal. (R=2 cal /K/mol)

One mole of carbon undergoes incomplete combustion to produce carbon monoxide, Calculate (Delta H - Delta U) for the formation of CO at 298 K. Given R = 8.314 JK^(-1) mol^(-1) .

The enthalpy of formation (Delta H_(f)) of a compound from its elements is

The volume of 2.8 g of carbon monoxide at 27^(@) C and 0.821 atm pressure (R = 0.821 "atm" K^(-1) "mol"^(-1))

OP TANDON-Chemical Thermodynamics and Thermochemistry-Objective Question Level-A
  1. Which of the following equations does not correctly represent the firs...

    Text Solution

    |

  2. Assuming DeltaH^(@) and S^(@) do not change with temperature. Calculat...

    Text Solution

    |

  3. (Delta H - Delta U) for the formation of carbon monoxide (CO) from its...

    Text Solution

    |

  4. For a phase change: H(2)O(l)hArrH(2)O(s) 0^(@)C, 1 bar

    Text Solution

    |

  5. We can drive any thermodynamically forbidden reaction in the desired d...

    Text Solution

    |

  6. The amount of heat released when 20 ml,0.5 M NaOHis mixed with 100 ml...

    Text Solution

    |

  7. In conversation of lime-stone ti lime, CaCO(3)(s)toCaO(s)+CO(2)(g) 7th...

    Text Solution

    |

  8. Assuming that water vapour is an ideal gas, the internal energy change...

    Text Solution

    |

  9. For the process H(2)O(l) (1 "bar", 373 K) rarr H(2)O(g) (1"bar", 373 K...

    Text Solution

    |

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

    Text Solution

    |

  11. Which of the following is correct?

    Text Solution

    |

  12. Which of the following represents total kinetic energy of one mole of ...

    Text Solution

    |

  13. Standard entropy of X(2) , Y(2) and XY(3) are 60, 40 and 50JK^(-1)mol...

    Text Solution

    |

  14. 4.48 L of an ideal gas at STP requires 12 cal to raise its temperature...

    Text Solution

    |

  15. On the basis of the following thermochemical data : (Delta(f)G^(@)H((a...

    Text Solution

    |

  16. The Habar's process of production of ammonia involves the equilibrium:...

    Text Solution

    |

  17. In which reaction there will be increase in entropy ?

    Text Solution

    |

  18. The species which by definition has zero standard molar enthalpy of fo...

    Text Solution

    |

  19. The standard enthalpy of formation of NH(3) is -46.0KJ mol^(-1) . If t...

    Text Solution

    |

  20. A 1.0g sample of substance A at 100^(@)C is added to 100 mL of H(2)O ...

    Text Solution

    |