Home
Class 12
CHEMISTRY
Enthalpy of which of the following react...

Enthalpy of which of the following reactions does not represent the standard enthalpy of formation?

A

`H_2(g)+1/2""o_2(g)rarrH_2O(I)`

B

`H_2(g)+Br_2(l)rarr2HBr(g)`

C

`S(rhombic,s)+O_2(g)rarrSO_2(g)`

D

`2C(graphite,s)+3H_2(g)+1/2""o_2(g)rarrC_2H_5OH(l)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • TEST 3

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|45 Videos

  • TEST 2

    AAKASH INSTITUTE ENGLISH|Exercise Exercise|300 Videos

  • TEST 4

    AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|90 Videos

Similar Questions

Explore conceptually related problems

What is standard enthalpy of formation

Which of the following reactions doesn’t represent the standard state enthalpy of formation reaction?

Which of the following reactions represents the enthalpy of formation of water?

Which among the following represents standard enthalpy of formation?

In which of the following reactions, the enthalpy is the least ?

Which of the following equations corresponds to the definition of enthalpy of formation at 298 K?

Which of the following equations corresponds to the definition of enthalpy of formation at 298K ?

Which of the following does not represent enthalpy change during phase transformation?

Define enthalpy of reaction.

Which of the following expressions is correct to calculate enthalpy of a reaction ?

AAKASH INSTITUTE ENGLISH-TEST 3-EXERCISE
  1. A chemical reaction takes place in a vessel of cross-sectional area 15...

    Text Solution

    |

  2. Five moles of an ideal gas undergoes reversible expansion from 1 L to ...

    Text Solution

    |

  3. Enthalpy of which of the following reactions does not represent the st...

    Text Solution

    |

  4. One mole of an ideal gas undergoes change of state from (4 L, 3 atm) t...

    Text Solution

    |

  5. The difference between heat of reaction at constant pressure and at co...

    Text Solution

    |

  6. According to kinetic theory of gases, the incorrect statement is

    Text Solution

    |

  7. The most probable speed of an ideal gas at constant pressure varies wi...

    Text Solution

    |

  8. At high pressure, the compressibility factor for one mole of van der w...

    Text Solution

    |

  9. The correct thermodynamic conditions for the spontaneous reaction at a...

    Text Solution

    |

  10. A closed cylinder contains 40 g of SO2, and 4 g of helium gas at 375 K...

    Text Solution

    |

  11. In the electrolysis of H2O , 11.2 liters of H2 was liberated at cathod...

    Text Solution

    |

  12. Which among the following will boil at highest temperature?

    Text Solution

    |

  13. If 200 ml of 0.1 MH2SO4 solution is mixed with 200 ml of 0.15 M NaOH s...

    Text Solution

    |

  14. Unit of surface tension is

    Text Solution

    |

  15. For which of the following processes, entropy change is negative?

    Text Solution

    |

  16. A liquid is in equilibrium with its vapour at a certain temperature. I...

    Text Solution

    |

  17. The work done by one mole of ideal gas when its teperature is increase...

    Text Solution

    |

  18. Standard enthalpy of formation is zero for

    Text Solution

    |

  19. Ratio of the rate of effusion of oxygen gas at 1.5 atm to that of heli...

    Text Solution

    |

  20. Compressibility factor under critical state of a gas is

    Text Solution

    |