Home
Class 11
CHEMISTRY
The enthalpy change for chemical reactio...

The enthalpy change for chemical reaction is denoted aas `DeltaH^(Theta)` and `DeltaH^(Theta) = H_(P)^(Theta) - H_(R)^(Theta)`. The relation between enthalpy and internal enegry is expressed by equation:
`DeltaH = DeltaU +DeltanRT`
where `DeltaU =` change in internal enegry `Deltan =` change in number of moles, `R =` gas constant.
Enthalpy of the system is given as

A

`H = PV`

B

`U +PV`

C

`U - PV`

D

`H = - PV`

Text Solution

Verified by Experts

`H = U +PV`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    CENGAGE CHEMISTRY|Exercise Exercises (Multiple Correct)|50 Videos
  • THERMODYNAMICS

    CENGAGE CHEMISTRY|Exercise Exercises (Single Correct)|62 Videos
  • THERMODYNAMICS

    CENGAGE CHEMISTRY|Exercise Exercises (Subjective)|70 Videos
  • STOICHIOMETRY

    CENGAGE CHEMISTRY|Exercise Archives Subjective|33 Videos

Similar Questions

Explore conceptually related problems

The enthalpy change for chemical reaction is denoted aas DeltaH^(Theta) and DeltaH^(Theta) = H_(P)^(Theta) - H_(R)^(Theta) . The relation between enthalpy and internal enegry is expressed by equation: DeltaH = DeltaU +DeltanRT where DeltaU = change in internal enegry Deltan = change in number of moles, R = gas constant. Which of the following equations corresponds to the definition of enthalpy of formation at 298K ?

The enthalpy change for chemical reaction is denoted as DeltaH^(Theta) and DeltaH^(Theta) = H_(P)^(Theta) - H_(R)^(Theta) . The relation between enthalpy and internal enegry is expressed by equation: DeltaH = DeltaU +DeltanRT where DeltaU = change in internal enegry Deltan = change in number of moles, R = gas constant. For the change, C_("diamond") rarr C_("graphite"), DeltaH =- 1.89 kJ , if 6g of diamond and 6g of graphite are seperately burnt to yield CO_(2) the heat liberated in first case is

The enthalpy change for chemical reaction is denoted aas DeltaH^(Theta) and DeltaH^(Theta) = H_(P)^(Theta) - H_(R)^(Theta) . The relation between enthalpy and internal enegry is expressed by equation: DeltaH = DeltaU +DeltanRT where DeltaU = change in internal enegry Deltan = change in number of moles, R = gas constant. For a reaction, 2X(s) +2Y(s) rarr 2C(l) +D(g), DeltaH at 27^(@)C is -28 kcal mol^(-1). DeltaU is ..... kcal mol^(-1)

The enthalpy change for chemical reaction is denoted aas DeltaH^(Theta) and DeltaH^(Theta) = H_(P)^(Theta) - H_(R)^(Theta) . The relation between enthalpy and internal enegry is expressed by equation: DeltaH = DeltaU +DeltanRT where DeltaU = change in internal enegry Deltan = change in number of moles, R = gas constant. H_(2)(g) +((1)/(2))O_(2)(g) = H_(2)O(l), DeltaH_(298K) = - 68.00kcal Heat of voporisation of water at 1 atm and 25^(@)C is 10.00 kcal . The standard heat of formation (in kcal) of 1 amol vapour a 25^(@)C is

For gaseous reactions, if DeltaH is the change in enthalpy and DeltaU that in internal energy then:

The relationship between enthalpy change (DeltaH) and internal energy change (DeltaE) for a system is given by

If DeltaH is the change in enthalpy and DeltaE the change in internal energy for a gaseous reaction then

If DeltaH is the enthalpy change and DeltaU the change in internal energy accompanying a gaseous reaction, then

CENGAGE CHEMISTRY-THERMODYNAMICS-Exercises (Linked Comprehension)
  1. The enthalpy change for chemical reaction is denoted as DeltaH^(Theta)...

    Text Solution

    |

  2. The enthalpy change for chemical reaction is denoted aas DeltaH^(Theta...

    Text Solution

    |

  3. The enthalpy change for chemical reaction is denoted aas DeltaH^(Theta...

    Text Solution

    |

  4. The enthalpy change for chemical reaction is denoted aas DeltaH^(Theta...

    Text Solution

    |

  5. For an ideal gas, an illustratio of three different paths A(B+C) and (...

    Text Solution

    |

  6. For an ideal gas, an illustratio of three different paths A(B+C) and (...

    Text Solution

    |

  7. For an ideal gas, an illustratio of three different paths A(B+C) and (...

    Text Solution

    |

  8. For an ideal gas, an illustratio of three different paths A(B+C) and (...

    Text Solution

    |

  9. For an ideal gas, an illustratio of three different paths A(B+C) and (...

    Text Solution

    |

  10. Concrete is produced form a mixture of cement, water and small stones....

    Text Solution

    |

  11. Concrete is produced form a mixture of cement, water and small stones....

    Text Solution

    |

  12. Concrete is produced form a mixture of cement, water and small stones....

    Text Solution

    |

  13. Concrete is produced form a mixture of cement, water and small stones....

    Text Solution

    |

  14. Concrete is produced form a mixture of cement, water and small stones....

    Text Solution

    |

  15. A sample of ideal gas undergoes isothermal expansion in a reversible m...

    Text Solution

    |

  16. A sample of ideal gas undergoes isothermal expansion in a reversible m...

    Text Solution

    |

  17. A sample of ideal gas undergoes isothermal expansion in a reversible m...

    Text Solution

    |

  18. A sample of ideal gas undergoes isothermal expansion in a reversible m...

    Text Solution

    |

  19. A sample of ideal gas undergoes isothermal expansion in a reversible m...

    Text Solution

    |

  20. Free enegry , G = H - TS, is state function that indicates whther a re...

    Text Solution

    |