Home
Class 12
CHEMISTRY
Prove that heat absorbed at constant pre...

Prove that heat absorbed at constant pressure is nothing but change in enthalpy.

Promotional Banner

Topper's Solved these Questions

  • Chemical Thermodynamics

    CHETANA PUBLICATION|Exercise EXERCISE|95 Videos
  • CHEMICAL KINETICS

    CHETANA PUBLICATION|Exercise EXERCISE|112 Videos
  • COORDINATION COMPOUNDS

    CHETANA PUBLICATION|Exercise EXERCISE|179 Videos

Similar Questions

Explore conceptually related problems

When a gas is heated at constant pressure, its volume changes and hence

One mole of water at 100^@ C is converted into steam at 100^@ C at a constant pressure of 1 atm. The change in entropy is ____________. (heat of vaporization of water at 100^@ C=540 cal/g)

Practice problems : A 1 L bottle half-filled with a hydrogen gas is heated at constant pressure such that , its temperature changes by 20 ⁰C . What will be the volume of the hudrogen gas in the bottle after heating ?

If a gas is heated at constant pressure, its isothermal compressibility

Calculate the heat absorbed if the initial temperature of 50g ice is 0^@C to change into water of the same temperature (Latent heat of fusion of ice is 80 cal//g )

At constant pressure , which of the following is true ?

Heat energy absorbed at constant temperature during transformation of solid into liquid : Latent heat of fusion : : Amount of heat energy absorbed at constant temperature by unit mass of a solid to convert into liquid : __

When an ideal diatomic gas is heated at constant pressure, the fraction of the heat energy supplied, which increases the internal energy of the gas, is

When an ideal gas (Y = 5/3) is heated under constant pressure , then what percentage of given heat energy will be utilised in doing external work

If 1200 calories of heat is removed from a gas which is held at constant volume, what is the change in internal energy of the system?

CHETANA PUBLICATION-Chemical Thermodynamics-EXERCISE
  1. Prove that heat absorbed at constant pressure is nothing but change in...

    Text Solution

    |

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

    Text Solution

    |

  3. A gas is allowed to expand in a well insulated container against a con...

    Text Solution

    |

  4. In which of the following entropy of the system decreases?

    Text Solution

    |

  5. The enthalpy of formation for all elements in their standard state is

    Text Solution

    |

  6. Which of the following reaction is exothermic ?

    Text Solution

    |

  7. 6.24 g of ethanol are vaporized by supplying 5.89kJ of heat.Enthalpy o...

    Text Solution

    |

  8. If the standard enthalpy of formation of methanol is -238.9 kJ mol^(-1...

    Text Solution

    |

  9. For vaporization of water at 1bar,DeltaH=40.63kJ mol^(-1)and DeltaS = ...

    Text Solution

    |

  10. Bond enthalpies of H-H, Cl-Cl and H-Cl bonds are 434 kj mol^(-1), 242 ...

    Text Solution

    |

  11. Which of the following is not a state function?

    Text Solution

    |

  12. Which of the following is not an extensive property?

    Text Solution

    |

  13. An endothermic reaction is one in which heat content of

    Text Solution

    |

  14. In a chemical reaction, work is done by the system when

    Text Solution

    |

  15. Which of the following is an intensive property?

    Text Solution

    |

  16. When a sample of an ideal gas is allowed to expand at constant tempera...

    Text Solution

    |

  17. A gas of 0.320 kJ works on its surroundings and absorbs 120 J of heat ...

    Text Solution

    |

  18. In the reaction, H2 + Cl2 rarr 2HCl DeltaH =-184 kJ, if 2 moles of H2 ...

    Text Solution

    |

  19. The enthalpies of formation of N2O and NO at 298 K are 82 and 90 kJ mo...

    Text Solution

    |

  20. For which of the following substances DeltafH^@ is not zero.

    Text Solution

    |

  21. If for a reaction, DeltaH is negative and DeltaS is positive then the ...

    Text Solution

    |